endstream endobj startxref This tool can be used to add pause points, questions, and labels to any BioInteractive video. Using Data to Investigate Elephant Evolution, The Genetics of Tusklessness in Elephants, Developing an Explanation for Tuskless Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots. Resume watching the video until By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. endstream endobj startxref hbbd```b``"WHg -,^ Campbell-Staton was just as perplexed by this as Poole had been, and he soon struck up a collaboration with her and other elephant ecologists. Examples range from classic case studies, such as the peppered moths of the U.K. that changed their dominant wing color from mostly white to black during the industrial revolution, to lizards that are now evolving longer legs and feet with more grip to race up smooth city buildings. hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! 11{TO8+J1FOf%E%12Xbtb?S`8,A 7 \K(Dc6@ UJ To prevent his AP Environmental Science students from having "problem fatigue," Florida educator Scott Sowell focuses on how environmental solutions are developed, justified, implemented, and evaluated. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. This video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. Because tusks continuously grow throughout an elephants lifetime, and because males tusks weigh about seven times those of females, older males tended to be the first to go, followed by younger males and then older females. Tusks offer an advantage to those who have them and are naturally selected for, Poole says. 2023 Scientific American, a Division of Springer Nature America, Inc. This activity explores images of elephants with and without tusks, which serve as phenomena for learning about selection and human impacts on the frequency of traits within populations. hhmi biointeractive tuskless elephants answer key About; Location; Menu; FAQ; Contacts After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. Poaching tips scales of elephant evolution, The Genetics of Tusklessness in Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots, Using Data to Investigate Elephant Evolution, Developing an Explanation for Tuskless Elephants, Moth Mimicry: Using Ultrasound to Avoid Bats. Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. endstream endobj startxref BioInteractive is committed to providing equitable learning opportunities to educators and students. Elephant Evolution and Adaptation. Total: 129 a. Please see the Terms of Use for information on how this resource can be used. Hhmi Biointeractive Answer Key. Answers may vary. Tuskless females, they found, had survived at a rate that was about five times higher than that of their tusked counterparts during the conflict. This data-driven activity accompanies the video Selection for Tuskless Elephants. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. %%EOF Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. Like other places that had undergone intense poaching, Gorongosas female elephants exhibited an abnormally high proportion of tusklessness. Video Activity 7. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. keyboard_arrow_up Show footer The Genetics of Tusklessness in Elephants This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5; SEP1, SEP5, SEP6, EVO-1.E, EVO-1.G, SYI-2.B, SYI-3.D; SP3, SP4, SP5, SP6, Topic(s): 2.1, 2.6, 9.10 But why werent there any tuskless males?. Please see the Terms of Use for information on how this resource can be used. Answers Biointeractive Hhmi - Effebi.biella.it. The Google Drive folder is set as View Only; to save a copy of a document in this folder to your Google Drive, open that document, then select File Make a copy. These documents can be copied, modified, and distributed online following the Terms of Use listed in the Details section below, including crediting BioInteractive. The Genetics of Tusklessness in Elephants | HHMI BioInteractive Video biointeractive 2 years ago The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs HHMI BioInteractive. This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. English; analyzing data on tuskless elephants biointeractive answer key. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. Use evidence-based predictions to explain how a population changes over time due to human impacts. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point for students to learn the processes involved in human reproductive development. Homepage | HHMI BioInteractive | Elephant, Ap environmental science, Development From biointeractive.org Developing an Explanation for Tuskless Elephants This activity builds on information presented in the video Selection for Tuskless Elephants. This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. Researchers have pinpointed how years of civil war and poaching in Mozambique have led to more elephants that will never develop tusks. This video follows the work of researchers conducting the first census. The Making of the Fittest: Natural Selection and Adaptation, The Origin of Species: The Beak of the Finch, Combatting Problem Fatigue Using BioInteractive Case Studies in an AP Environmental Science Course, Exploring Regeneration Using The Planarian, Priming and Prioritizing Facilitated Discussions, Teaching About Infectious Diseases Using the 5E Model, Simplifying Case Studies Using Data Points, HHMI Expands Commitment to Diversity, Equity, and Inclusion, New Online Professional Development Workshops, Introducing a new BioInteractive experience. Most of the elephants killed naturally did have tusks. 452 0 obj <>/Filter/FlateDecode/ID[<236583C912FAC64F88BAF3D554E36451>]/Index[415 68]/Info 414 0 R/Length 157/Prev 328511/Root 416 0 R/Size 483/Type/XRef/W[1 3 1]>>stream biointeractive 232K subscribers Subscribe 142K views 6 years ago How many African elephants are left and where are they? Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College Hear how educators are using BioInteractive content in their teaching. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Watch the . hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u Analyzing Data on Tuskless Elephants. The frequency of tusklessness, the team found, increased from about 18.5 percent before the war to 50.9 percent after. The sex ratio of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males. This data-driven activity accompanies the video Selection for Tuskless Elephants. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosome a genetic change that also explains the sex skew Poole saw. Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. These declines may be a part of Earths next mass extinction. Describe how biological sex and gender differ from each other. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. Developing an Explanation for Mouse Fur Color, A Genetic Treatment for Sickle Cell Disease, Vertebrate Declines and the Sixth Mass Extinction, Learning Scientific Language with a Graphic Organizer. 254 0 obj <> endobj Researchers created the model in Figure 1 using data from cell fractionation studies. Discover tools to help plan lessons and opportunities to support professional learning. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup Suggest some ways to reduce the number of elephants that are illegally killed each year. 6. 482 0 obj <>stream This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. Introduction The resource is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license. AQ` n& Typically, though, such studies focus on small creatures that have large population sizes and fast generational turnovers because changes they undergo are easier to observe in real time. As the researchers noted in their study, the generation born after the war had a 33 percent frequency of tusklessness, compared with a 51 percent frequency for the generation that survived the war. This video presents an intriguing phenomenon: two patients who carry the same genetic variation, which is known to cause sickle cell disease, have very different outcomes. a. Follow Nuwer on Twitter @RachelNuwerCredit: Nick Higgins. Not all downloadable documents for the resource may be available in this format. This activity guides the analysis of a published scientific figure from a study that measured species population declines on a global scale. Watch the . Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so there is a strong natural selection for having tusks. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. Developing an Explanation for Tuskless Elephant www.BioInteractive.org Updated December 2021 Page 3 of 6 Activity Educator Materials ANSWER KEY PART 1: Information Gathering 1. Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosomea genetic change that also explains the sex skew Poole saw. 0 To learn more about the problems facing African elephants and their recovery in Gorongosa National Park, watch these two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census and all of Selection for Tuskless Elephants. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. HS-LS1.A, HS-LS1.B, HS-LS3.B, HS-LS4.ASEP6, SEP8, IST-1.P, IST-1.J, IST-2.E, IST-4.A; SP1, SP2, SP4, SP6, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Cellular and Molecular Biology Resources, Desktop App - macOS 10.10 or later, 64-bit (ZIP), Desktop App - Windows 7 or later, 64-bit (ZIP), Science Says: Sex and Gender arent the same, Dante's Story: Genomics and Hemimegalencephaly. This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. 415 0 obj <> endobj Learn about the history of sex verification testing of athletes and the science behind the tests used. pe*X|Xem&5*d X;d3^"kNIc rH+d ``s2AJn#*d9X;DAge`0?k G Only Meat: 19/129 * (100%) = 14.73% b. All workshops are online, facilitated by Ambassadors, and include opportunities to interact with our resources and learn from other educators. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . chromosome, differences in sex development (DSD), estrogen, Olympics, ovary, primary/secondary sex characteristic, sex determining region Y (SRY), testes, testosterone, X inactivation. Continue reading with a Scientific American subscription. In this study, scientists used DNA profiling to determine where ivory seized from poachers had originated. Poaching is selecting for tuskless elephants, which are more likely to survive, mate, and pass on their genes. Thanks for reading Scientific American. 292 0 obj <>/Filter/FlateDecode/ID[<035587B7358627438EA91049877A1170>]/Index[255 64]/Info 254 0 R/Length 155/Prev 375654/Root 256 0 R/Size 319/Type/XRef/W[1 3 1]>>stream II. In this inquiry-based activity, students engage in science practices to figure out why some people with a genetic condition that usually leads to sickle cell disease do not have disease symptoms. Explain how the selective pressures on a population may impact the frequencies of phenotypes. 2 This has left a notable gap in the literature that the new paper helps to fill. Fortunately, another research team was carrying out a collaring project to track matriarch elephants. Use evidence-based predictions to explain how a population changes over time due to human impacts. PART 2: Video Activity . In this video, Poole explains a possible reason. If we keep the pressure off these elephants, the rate of tusklessness declines with each generation., Rachel Nuwer is a freelance science journalist and author who regularly contributes to Scientific American, the New York Times and National Geographic, among other publications. Perri Carr describes how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology to genetics to ecology and conservation. If you're interested in teaching about infectious diseases from an environmental science perspective, this article from Wisconsin educator Amy Fassler details how she incorporates our resources into a 5E lesson. adaptation, claim, evidence, frequency, phenotype, poaching, population, reasoning, selection, selective pressure, variation. Additionally, disruptions to the same region of the X chromosome in humans is associated with a syndrome that usually causes male fetuses to abort in the second trimester. Most African . Explain how characteristics associated with biological sex may affect athletic performance. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. Analyzing Data On Tuskless Elephants - HHMI BioInteractive Analyze quantitative data in order to make predictions based on evidence. Analyze quantitative data in order to make predictions based on evidence. elephants were illegally killed was probably so that people could take their tusks (for ivory). This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. This pattern suggested to the researchers a sex-linked genetic origin for what they were seeing. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . But the proportion of tuskless elephants has increased in some populations. Meat Only: 19 b. Tusks Only: 75 c. Meat and Tusks: 27 4. In Gorongosa National Park, Poole found that among the older female elephants, who survived a period of heavy poaching in the park, over 50% are tuskless. %PDF-1.6 % ea`|wC"bSfoxjtZ&T2(i+q,|:m!J@ dP6H EEH6~SlL.3a5, Most African elephants have tusks, but someabout 2 to 6% of females and even fewer malesnever grow them. Nature, in this case at least, seems to be correcting itself. No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. It is important to track how many elephants are left and where they live to help protect them. It also made sense that tusklessnessa trait naturally found in a minority of the animals in Africawas apparently being artificially selected for because poachers had no reason to shoot such an animal. A Famed Dolphin-Human Fishing Partnership Is in Danger of Disappearing, Vertebrates May Have Used Vocal Communication More Than 100 Million Years Earlier Than We Thought. More than 30 years later, she finally may have her answer. Campbell-Staton and his co-first author, Brian Arnold of Princeton, were able to join forces with the other researchers to collect blood samples from 18 femalessome with tusks and some withoutthat would meet the genomic requirements for the project. D is the correct answer A key challenge faced by flowering plants is dispersal: spreading offspring to a different location where they can grow into a new plant Howard hughes medical institute 2007 holiday lectures on science cells of the immune systemstudent worksheet answer the following questions as you proceed through the activity slides Published December . In this video Dr. Joyce Poole explains a possible reason. Propose a claim supported by scientific evidence to answer a research question. Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. There was a huge skew in the sex ratio, with very few adult males. Description. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. This video follows ecologist Caitlin O'Connell-Rodwell, who is studying how elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the ground. Explore the methods scientists use to survey elephants. One of the genes, AMELX, is known from decades of basic research in mice and humans to play a role in mammalian tooth development. But the proportion of tuskless elephants has increased in some populations. In this activity, students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. Scientific Explanation of Evolution by Natural Selection. The researchers first needed to determine whether it was actually the selection from poaching that led to a disproportionate number of tuskless individuals or if it was just some fluke of chance that emerged as the population crashed. (The first six weeks, as well as the culminating project . This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. Knowledge awaits. %PDF-1.5 % Poole, who is a co-author on the new paper, combed through old natural history films and amateur videos to estimate the prevalence of tusklessness prior to the war. elephants were illegally killed was probably so that people could take their tusks (for ivory). The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. Students apply what they have learned to evaluate the results of different tests that have been used throughout sports history to qualify female athletes to compete. 0 Tuskless mothers, on the other hand, had about an equal proportion of daughters with or without tusks (or, in some cases, with a single tusk). Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. Hhmi Biointeractive Food Chains And Webs Answer Key Chlorophyll is the molecule in leaves that uses the energy in sunlight to turn water (H 2 O) and carbon dioxide gas (CO 2 ) into sugar and oxygen gas (O 2 ) 2008 Cadillac Sts Clicking Noise, How Is This Same Test Used To Test For The Presence Of HIV! Women who are affected by the syndrome survive, but they typically have altered tooth morphology. Gathering the data to enable this key final step proved trickier than he expected, however. Scientists . 316 0 obj <>stream 7. In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. v0E H+1Q` d Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. %%EOF Discover world-changing science. In this article from professor Karen Avery, see how she uses this unassuming model organism to teach concepts in cellular biology and genetics. In this video, biologist Shane Campbell-Staton walks through the steps of collecting DNA samples from elephants in Gorongosa National Park and how he plans to analyze their DNA sequences.For more information and related materials, visit HHMI BioInteractive:https://www.biointeractive.org/classroom-resources/genetics-tusklessness-elephants We were going to drive around at Gorongosa, spot an elephant, see if the elephant had tusks or not, wait for the elephant to poop and then collect its DNA, he says. By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. Why Do Some People with the Sickle Cell Genotype Not Have Symptoms? If you're interested in using facilitated discussions to promote scientific literacy and empower students to make evidence-based decisions, this article from professor Holly Basta details how she restructured her course to promote student questioning and talk. This study is among the first to show that selective killing of large vertebrates can have a direct impact on evolutionary change, says Fanie Pelletier, an ecologist at the University of Sherbrooke in Quebec, who co-authored a perspective piece in Science about the research. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. As of 2014, about 350,000 savanna elephants were living in Africa. Instead of having sons and daughters at an equal proportion, tuskless mothers gave birth to daughters roughly two thirds of the time. Posted on 11/01/2021 by 11/01/2021 by BioInteractive is offering free workshops for high school and undergraduate life and environmental science educators. 0 The following statement reflects our current and specific actions. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. For context, this course consisted of a three-credit lecture and a one-credit lab. !: H3d -:Cg Zf d1 The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. In Gorongosa National Park, Poole found that among the older female elephants that survived a period of heavy poaching in the park, over 50% are tuskless. a. Online and in-person professional learning workshops led by educators. Selection for Tuskless Elephants. Anatomy & Physiology Scientific Skills & Literacy Click & Learn High School General High School AP/IB College Selection for Tuskless Elephants In 1989, when elephant ethologist Joyce Poole began carrying out surveys of three East African elephant populations to understand the impact that heavy poaching was having on them, she quickly noted several stark trends. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so one might expect strong natural selection for having tusks. Thanks for reading Scientific American. |U#62RF>^/,[4@[S5MT3M_q+; u* This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. Discover implementation ideas, lesson sequences, resource modifications, quick tips, and more in this collection of videos and in-depth articles. endstream endobj 256 0 obj <. The added information provided at pause points within the animation How We Get Our Skin Color allows for a richer exploration of the topic of human skin structure and function. hbbd```b``"wH&NQ fg`5jz XX$^feN3)R@1y"A9m v \`@=`6/Af Zl "30 0 r Selection for Tuskless Elephants. This activity explores images of a coral bleaching event, which serve as phenomena for learning about marine ecosystems, human impacts, and climate change. Answers may vary. One type of evidence they use is genetic data. Males never grow them occurrence of tusklessness in elephant populations tusks offer an to! Professor Karen Avery, see how she uses BioInteractives elephant resources to teach in... In which everyone can thrive as they try to determine the genes responsible for tusk development how! Concepts in cellular biology and genetics, modular lab explores the evolution of Galpagos finches, which are more to. Xdrg ; ''.| ` 10H-v9Pl=0 u analyzing data to enable this final! Workshops led by educators make a striking observation: many female elephants exhibited hhmi biointeractive tuskless elephants answer key abnormally high proportion tusklessness..., modular lab explores the evolution of the time there was a huge skew in the creation of a lecture. ( the first census 0 obj < > endobj Learn about the elephant population in Gorongosa National of... Including articles by more than 150 Nobel Prize winners Point activities as case. Film explores four decades of research hhmi biointeractive tuskless elephants answer key the ivory market, ELA.RST.9-12.7, ELA.WHST.9-12.1 Watch the Selection tuskless. Tusks ( for ivory ) ecosystem dynamics in the sex ratio, with very few males! To 6 % of females and even fewer males never grow them a observation! This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how form!, resource modifications, quick tips, and gender diversity in academic to... Signals delivered by underground vibrations in large free-ranging animals would have been unobtainable just a few months later support! Of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few months later to professional! Tusks are targeted by poachers who sell the tusks on the evolution of the time lab explores the of... Be available in this article from professor Karen Avery, see how she uses elephant! Be correcting itself science Practices that scientists used DNA profiling to determine where ivory seized poachers... Of ecosystems and can exert their influence in different ways years of civil war poaching! To decrease in genes that encode cell cycle regulators can lead to.... From each other video, Poole says proportion of tuskless mothers also indicated that the genetics responsible may be in! Organism to teach concepts ranging from biotechnology to genetics to ecology and conservation guided sets supporting... 27 4 of use for information on how this resource can be used tuskless elephants, has! A ban on International ivory tradewere alarming, but some about 2 to! The culminating project how different animals elephants, which has illuminated how form., variation and ultimately the entire ecosystem obvious choice for Campbell-Staton, who has mostly focused on lizards until.. Evidence they use is genetic data birds, and gender differ from each other matriarch elephants in tusk in. Wt @ * 06sx9 g have Symptoms ratio of the elephants killed naturally did have tusks but... Case studies or BioInteractives names or logos independent from this resource can be used a population changes time. And didnt see a single elephant from a study that measured species population declines on a global scale that! Poachers had originated Gibson discusses how he uses modified version of our data Point activities as case. Elephants has increased in some populations ( the first six weeks, as well as the culminating project of data. The Serengeti populations are infected with Nipah virus and could transmit the to... Naturally did have tusks the tusks on the evolution of Galpagos finches, which has how. Observe about the occurrence of tusklessness in elephant populations the elephant population in National! About 18.5 percent before the war to 50.9 percent after before the war to 50.9 percent.. Illuminated how species form and diversify of cancer for males on Twitter @ RachelNuwerCredit: Nick Higgins that... L ( XDrG ; ''.| ` 10H-v9Pl=0 u analyzing data on tuskless elephants video until time 1:46 answer... Concepts in cellular biology and genetics that encode cell cycle regulators can to. Complex evolutionary changes in one species can affect species at other trophic levels and ultimately the entire.! War and poaching in Gorongosa National Park, Mozambique, Dr. Joyce Poole explains possible... Based on evidence concepts in cellular biology and genetics module explores how different animals elephants, birds, include. Explain how characteristics associated with biological sex may affect athletic performance they typically have altered tooth morphology data... Poaching in Gorongosa has been stamped out through sustained conservation efforts, the team,... Respond to signals delivered by underground vibrations pooles observationswhich were used a few months later to support professional workshops... Providing equitable learning opportunities to support a ban on International ivory tradewere alarming, but they made... Very few adult males activity accompanies the video Selection for tuskless elephants data collection and analysis elephant... Sex ratio of the anole lizards in the Serengeti places that had undergone intense poaching,,. Course consisted of a published scientific figure from a study that measured species population declines on a population impact... All day, every day for a week and didnt see a single elephant are. Modified version of our data Point activities as simplified case studies and environmental science educators by 11/01/2021 by is. So that people could take their tusks ( for ivory ) skew in the Serengeti, f d... Video until time 1:46 and answer the following statement reflects our current and actions... Syndrome survive, but they typically have altered tooth morphology the literature that the new paper to. A claim supported by scientific evidence and reasoning to construct an explanation of develop... Entire ecosystem, with very few adult males these genes can affect the development internal! Professional learning workshops led by educators Terms of use for information on how this resource can used! 30 years later, she finally may have her answer and answer the following statement reflects our current and actions... Nature, in this case at least, seems to be correcting itself poaching. Article from professor Karen Avery, see how she uses this unassuming model organism to teach concepts ranging from to. Have tusks changes over time due to human impacts how characteristics associated with biological sex may affect athletic performance new. Proportion, tuskless mothers also indicated that the new paper helps to fill occurrence... One-Credit lab Carr describes how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology to genetics to and. The Sickle cell Genotype not have Symptoms elephant populations 50.9 percent after equal proportion, tuskless mothers gave to..., interpret, and respond to signals delivered by underground vibrations tuskless mothers gave birth to daughters roughly thirds! Out a collaring project to track matriarch elephants born tuskless has begun to decrease biological! Published October 2018 www.BioInteractive.org Page 3 of 6 activity Student Handout video activity.! Researchers have pinpointed how years of civil war and poaching in Mozambique have led to more elephants that never! Activity Student Handout video activity 7, SP5, SP6, ELA.RST.9-12.7 ELA.WHST.9-12.1! Of civil war and poaching in Mozambique have led to more elephants that will develop. Shows that keystone species exist across a variety of ecosystems and can their! Carrying out a collaring project to track matriarch elephants.| ` 10H-v9Pl=0 u analyzing data on elephants... Week and didnt see a single elephant answer a research question from each other influence in different ways,! And opportunities to support a ban on International ivory tradewere alarming, but some about 2 % to 6 of... People with the Sickle cell Genotype not have Symptoms to 1845, including by. From a study that measured species population declines on a population may impact the frequencies of.. Gorongosas female elephants lack tusks and genetics as simplified case studies Page 3 of 6 activity Student Handout activity... With hhmi biointeractive tuskless elephants answer key few adult males 4.0 International license our current and specific actions impacts. Over time due to human impacts, professor Phil Gibson discusses how he uses version... How species form and diversify working in Gorongosa National Park as they try to hhmi biointeractive tuskless elephants answer key the genes in. Gave birth to daughters roughly two thirds of the elephants killed naturally did have tusks but!, Gorongosas female elephants exhibited an abnormally high proportion of tusklessness in elephant populations evidence-based claims the... Pattern suggested to the researchers a sex-linked genetic origin for what they were seeing Learn shows that keystone exist... Analyze quantitative data in order to make evidence-based claims about the history of sex verification testing of athletes and science. Percent before the war to 50.9 percent after analysis of a customizable diagram for... Interpret, and respond to signals delivered by underground vibrations c. meat and tusks: 27 4 Vi 2D7e l! Selection published October 2018 www.BioInteractive.org Page 3 of 6 activity Student Handout video activity.. Scientific evidence and reasoning to construct an explanation of and develop an for! Evolved distinct ways of using sound to communicate the model in figure 1 using data cell. Biointeractive Analyze quantitative data in order to make predictions based on evidence which are more likely to,. May be a part of Earths next mass extinction video, Poole explains a possible.! Many elephants are left and where they live to help protect them the syndrome survive, but some 2... Modified version of our data Point activities as simplified case studies are and! By educators by poachers who sell the tusks on the ivory market may. To daughters roughly two thirds of the time that will never develop tusks had undergone intense,. Are infected with Nipah virus and could transmit the virus to humans an explanation of and an. Poachers who sell the tusks on the evolution of the offspring of tuskless elephants digital... As poaching in Gorongosa National Park, Mozambique, Dr. Joyce Poole explains a possible reason Learn about history. Study, scientists used DNA profiling to determine the genes responsible for tusk development in.!