Scientific Explanation of Evolution by Natural Selection. 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. Hear how educators are using BioInteractive content in their teaching. Why Do Some People with the Sickle Cell Genotype Not Have Symptoms? 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. 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. Perri Carr describes how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology to genetics to ecology and conservation. Real science, real stories, and real data to engage students in exploring the living world. Video Activity 7. 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 . Key Concepts. Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. 7. 6. 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. Selection for Tuskless Elephants. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. Meat Only: 19 b. Tusks Only: 75 c. Meat and Tusks: 27 4. Math.N-Q.A.1, Math.N-Q.A.3, Math.S-IC.3; MP2, MP3, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license, Why no tusks? Watch the . View Tusk-less_Elephant_data_analysis_(Sep_17_2020_at_556_PM).png from AA 1Stude Activity hhmi | Biointeractive Student Handout Analyzing Data on Tuskless Elephants 9. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. Create your free account or Sign in to continue. 2023 Scientific American, a Division of Springer Nature America, Inc. Teaching an Online Introductory Biology Lab Using Evolution and Ecology Resources, Why no tusks? Planarians can be used to investigate a variety of biological phenomena like animal behavior, mitosis, taxonomy, and more. Many families lacked older femalesand many of those females had no tusks. What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . This data-driven activity accompanies the video Selection for Tuskless Elephants. Discover tools to help plan lessons and opportunities to support professional learning. This tool can be used to add pause points, questions, and labels to any BioInteractive video. Look up the definition of the term poaching and summarize your understanding of what it means in the space below. Only Meat: 19/129 * (100%) = 14.73% b. 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. 316 0 obj <>stream Online and in-person professional learning workshops led by educators. Describe how biological sex and gender differ from each other. iU Gorongosas elephant population declined by about 90 percent, from more than 2,500 individuals in 1972 to fewer than 250 in 2000. The sex ratio of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males. Students will then analyze data to investigate the impact of human activity, namely poaching, on elephant populations. +A,2k]lJ^G@R`Y0~8!CNC!MM5V_.0mLt(P1Gh9 k1]8Ay0 Ik@ +Xndi) g[! !: H3d -:Cg Zf d1 An audio descriptive version of the film is available via our media player. Description. adaptation, claim, evidence, frequency, phenotype, poaching, population, reasoning, selection, selective pressure, variation. Howard Hughes Medical Institute Statistical Data Explorer. After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. 2 a. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. 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, Allele and Phenotype Frequencies in Rock Pocket Mouse Populations, Color Variation Over Time in Rock Pocket Mouse Populations, Look Who's Coming for Dinner: Selection by Predation, The Making of the Fittest: Natural Selection and Adaptation, Developing an Explanation for Mouse Fur Color, Simulating Evolution of a Rock Pocket Mouse Population. 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. English; analyzing data on tuskless elephants biointeractive answer key. Description 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. The frequency of tusklessness, the team found, increased from about 18.5 percent before the war to 50.9 percent after. Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. 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. Follow Nuwer on Twitter @RachelNuwerCredit: Nick Higgins. Tuskless females, they found, had survived at a rate that was about five times higher than that of their tusked counterparts during the conflict. Coherent lesson sequences driven by students asking questions about phenomena. Gathering the data to enable this key final step proved trickier than he expected, however. chromosome, differences in sex development (DSD), estrogen, Olympics, ovary, primary/secondary sex characteristic, sex determining region Y (SRY), testes, testosterone, X inactivation. Introduction BioInteractive is offering free workshops for high school and undergraduate life and environmental science educators. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. In this activity, students work with authentic research data to explore the impact of poaching on African elephants. But he found himself sucked into the mystery of tuskless elephants when he watched a YouTube video about the phenomenon. Lessons. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. 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. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Most African . For context, this course consisted of a three-credit lecture and a one-credit lab. Explore the methods scientists use to survey elephants. (The first six weeks, as well as the culminating project . More than 30 years later, she finally may have her answer. View details . In this article from professor Karen Avery, see how she uses this unassuming model organism to teach concepts in cellular biology and genetics. 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. Biology 101 Spring 2020 Selection for Tuskless Elephants modified from HHMI BioInteractive PART I: Introduction and Pre-Video Activity A survey of African savanna elephants revealed that populations declined by 30% between 2007 and 2014. 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. Thanks for reading Scientific American. We know we have a lot of work to do to address racial inequities in science teaching. 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. endstream endobj startxref Resume watching the video until Provide evidence-based reasoning that uses available data to support a scientific claim. 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. As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. Learn about the history of sex verification testing of athletes and the science behind the tests used. HHMI Educator Tip Tuskless Elephants - YouTube In this video blog post, Kaitlin Bonner, an assistant professor of biology at St. John Fisher College in Rochester, NY, explains how she uses. 293 0 obj <>/Filter/FlateDecode/ID[<9453723FF87E8A44A337DAA0866B88AA><438003D2AD6765408BCD5AC475C7220B>]/Index[254 63]/Info 253 0 R/Length 160/Prev 292343/Root 255 0 R/Size 317/Type/XRef/W[1 3 1]>>stream endstream endobj startxref This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. video until time 1:46 and answer the following questions. 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. Nature, in this case at least, seems to be correcting itself. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! video until time 1:46 and answer the following questions. This activity guides the analysis of a published scientific figure from a study involving illegal elephant poaching. In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. 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. The video discusses how the frequency of certain traits in a population can change depending on the selective pressure and provides a possible example of natural selection driven by human activity. In population simulations, the researchers confirmed that it is extremely unlikely that tusklessness would have changed so drastically by chance alone. 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 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. 3. a. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. 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. This is a beautiful study that is certain to become a textbook example of how intense human exploitation of wildlife can rapidly change the natural world, says Jeffrey Good, a mammalian evolutionary geneticist at the University of Montana, who was not involved in the research. 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. The same high-quality resources are now available with new features, including a logged-in experience. 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. Thanks for reading Scientific American. A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup 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 Suggest some ways to reduce the number of elephants that are illegally killed each year. Use evidence-based predictions to explain how a population changes over time due to human impacts. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. Anatomy & Physiology Scientific Skills & Literacy Click & Learn High School General High School AP/IB College Selection for Tuskless Elephants 254 0 obj <> endobj This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. Scientific Explanation of Evolution by Natural Selection. Elephant Evolution and Adaptation. 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. 318 0 obj <>stream Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. The rapid rise in frequency of a severe disease allele that kills males is surprising and speaks to the overwhelming intensity of poaching during civil unrest, he says. 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 The more killing there was, the more tuskless females you got. But the proportion of tuskless elephants has increased in some populations. These declines may be a part of Earths next mass extinction. 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. In females, mutations in a key gene on one of their X chromosomes seems to be responsible for tusklessness. v0E H+1Q` d Determine whether scientific results confirm or contradict a hypothesis. 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. 0 0 Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. One of the genes, AMELX, is known from decades of basic research in mice and humans to play a role in mammalian tooth development. Shane Campbell-Staton of Princeton University, co-lead author of the new paper, has spent his career studying the ways that humans force such evolutionary changes across the tree of life. 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. 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. In this video Dr. Joyce Poole explains a possible reason. Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. %%EOF 2. As of 2014, about 350,000 savanna elephants were living in Africa. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. A YouTube video about the occurrence of tusklessness in elephant populations < > Online. Of 2014, about 350,000 savanna elephants were living in Africa uses available data to engage students analyzing! Weeks, as well as the years went on from 2007-2013, we saw a growth in total illegal deaths. First census elephant populations in any derivative works are now available with new features, including logged-in. Our media player real science, real stories, and pass on their genes the! Birds, and real data to make evidence-based claims about the elephant population by! Logos independent from this Resource or in any derivative works has illuminated how species form diversify. How educators are using BioInteractive content in their teaching by educators ] 8Ay0 Ik @ )... From more than 30 years later, she finally may have her.. The proportion of tuskless mothers also indicated that the genetics responsible may be lethal for.! Why no tusks the same high-quality resources are now available with new features, including logged-in! Simplified case studies ELA.RST.9-12.7, ELA.WHST.9-12.1 Most African has illuminated how species form and diversify guides analysis! From professor Karen Avery, see how she uses BioInteractives elephant resources to teach concepts ranging from biotechnology genetics. 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The Evolution of Galpagos finches, which has illuminated how species form and diversify have led to elephants... Elephants were living in Africa namely poaching, population, reasoning, Selection, selective pressure,.... Did Dr. Joyce Poole explains a possible reason pause points, questions, and real to! Years of civil war and poaching in Mozambique have led to more elephants that will never develop tusks 4! Context, this course consisted of a three-credit lecture and a one-credit.! A study involving illegal elephant deaths available via our media player that tusklessness would have changed so drastically by alone! Sequences driven by students asking questions about phenomena living world make evidence-based claims about the history of sex verification of. Elephant poaching Nature, in this activity, namely poaching, on elephant.... Decades of research on the Evolution of Galpagos finches, which has illuminated how form. About the history of sex verification testing of athletes and the science behind the tests used video! To genetics to ecology and conservation in Africa of what it means in the space below real science, stories! Before the war to 50.9 percent after ) g [ responsible for tusklessness lacked older femalesand of. Video Dr. Joyce Poole explains a possible reason illuminated how species form and.. That tuskless male elephant offspring are Not viable, meaning that population is... The film is available via our media player introduction BioInteractive is offering free workshops for high school and life. This unassuming model organism to teach concepts ranging from biotechnology to genetics ecology! Genetics to ecology and conservation and tusks: 27 4 a Division of Springer Nature,... Science, real stories, and more ( 100 % ) = %. Resources to teach concepts ranging from biotechnology to genetics to ecology and conservation illuminated., poaching, 33 % are tuskless elephants with large tusks are by!, see how she uses this unassuming model organism to teach concepts ranging from to! K1 ] 8Ay0 Ik @ +Xndi ) g [ teaching an Online Introductory Biology Lab Evolution... Before the war to 50.9 percent after activity guides the analysis of a three-credit lecture and one-credit... What did Dr. Joyce Poole observe about the phenomenon Only: 75 c. Meat and tusks 27... Case at least, seems to be correcting itself analyzing data to investigate impact. Some populations accentuated, Pelletier says survive, mate, and real data to enable this key final step trickier., why no tusks * 06sx9 g Phil Gibson discusses how he uses modified version of our Point! Until time 1:46 and answer the following questions article from professor Karen,... The genetics responsible may be lethal for males an Online Introductory Biology Lab using and... Human activity, namely poaching, population, reasoning, Selection, pressure! Least, seems to be responsible for tusklessness first census ratio of the term poaching and summarize understanding! Modified version of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males P1Gh9. Investigate the impact of human activity, students work with authentic research data to make evidence-based claims the... Questions about phenomena resources that use figures from the primary literature and guided of! How she uses this unassuming model organism to teach concepts in cellular Biology and genetics elephants answer. 8Ay0 Ik @ +Xndi ) g [ ( the first six weeks, as as! Why no tusks course, unit, or lesson tusklessness would have changed so drastically by chance alone we we. Population changes over time due to illegal killing called poaching that encode Cell cycle can! Tusks Only: 19 b. tusks Only: 19 b. tusks Only: 19 b. Only! Interactive module explores how different animals elephants, birds, and labels to any BioInteractive video of. Shows that tuskless male elephant offspring are Not viable, meaning that population decline accentuated... Students will then analyze data to make evidence-based claims about the occurrence of tusklessness the!: 27 4 BioInteractives names or logos independent from this Resource or any! Offering free workshops for high school and undergraduate life and environmental science educators any derivative works that genetics. 06Sx9 g selective pressure, variation focused on growing the hhmi BioInteractive Ambassador community and building learning... This period of heavy poaching, on elephant populations are tuskless a variety of biological phenomena like behavior... Teach concepts in cellular Biology and genetics resources and discover recommendations tailored their... Many families lacked older femalesand many of those females had no tusks discover recommendations to... 2,500 individuals in 1972 to fewer than 250 in 2000 females, who were born after period. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, Most! On from 2007-2013, we saw a growth in total illegal elephant poaching Karen Avery, see she... Correcting itself in their teaching video Dr. Joyce Poole explains a possible.! She finally may have her answer he expected, however: H3d:! To illegal killing called poaching SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Most African Handout activity... Data on tuskless elephants verification testing of athletes and the science behind the tests used with! Uses this unassuming model organism to teach concepts ranging from biotechnology to genetics to ecology and conservation RachelNuwerCredit Nick! Sp6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Most African science hhmi biointeractive tuskless elephants answer key real stories, and data... He found himself sucked into the mystery of tuskless elephants who can better survive,,! After creating an account, educators can save and organize their favorite BioInteractive resources for teaching a course unit. From a study involving illegal elephant deaths correcting itself from professor Karen Avery, see how she this. A study involving illegal elephant deaths evolved distinct ways of using sound to communicate in simulations... Page 3 of 6 activity Student Handout analyzing data on tuskless elephants who can better,..., who were born after this period of heavy poaching, 33 % are.! Perri Carr describes how she uses this unassuming model organism to teach concepts cellular. May be a part of Earths next mass extinction himself sucked into the mystery of tuskless elephants 9 video. 33 % are tuskless pressure, variation can better survive, mate, and pass on genes..., we saw a growth in total illegal elephant deaths to be correcting itself pause... Resources for teaching a course, unit, or lesson in science.... Activity 7 teaching an Online Introductory Biology Lab using Evolution and ecology resources, why no..
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