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¿Si tu casa se incendiara, que es lo que te llevarías cuando estés huyendo? La decisión puede ser difícil entre juguetes de niños, álbumes de fotos y documentos importantes compitiendo por tu atención. Desafortunadamente, nos enfrentamos con una decisión difícil cuando tenemos que definir nuestros esfuerzos de conservación. Las actividades humanas podrían estar desencadenado la sexta extinción masiva de la Tierra...

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Through a series of fictionalized diary entries, this case recounts the 1939 discovery by Marjorie Courtenay-Latimer (and identification by J.L.B. Smith) of a living coelacanth, a fish believed to have been extinct for 70 million years.

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In this set of sequenced lessons, students learn how to devise an experiment to test the difference between acclimation and adaptation; investigate how scientific arguments show support for natural selection in Tibetans; design an investigation using a simulation based on the Hardy-Weinberg principle to explore mechanisms of evolution; and devise a test for whether other groups of people have adapted to living at high altitudes.

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This research profile follows Dr. Rosemary Gillespie to Hawaii as she evaluates hypotheses about the evolution of the colorful happy-face spider.

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The discovery of the platypus had the scientific world in an uproar with its mammal-like and bird-like features. How was one to classify the platypus? This case study uses this issue to model the scientific process, with scientists arguing, debating, collecting more evidence, and revising their opinions as new data become available.

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Wondering how global warming will affect our planet? Scientist Jennifer McElwain studies the fossil record in order to learn more about how global warming has affected life on Earth in the past and how it might affect life on Earth in the future.

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This research article examines connections between biodiversity loss and ecosystem functions that matter to humans, such as providing access to food, fuel, shelter, and water. This open-access article has been translated into Spanish and Chinese by students in the UC Berkeley Integrative Biology program.

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The rough-skinned newt looks harmless enough but is, in fact, packed full of one of the most potent neurotoxins known to man. Find out how an evolutionary arms race has pushed these mild-mannered critters to the extremes of toxicity and how evolutionary biologists have unraveled their fascinating story.

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When biologist Lynn Margulis revived the strange-sounding idea that the merging of cells played a prominent role in the evolution of complex life, the scientific community roundly rejected the notion. Today, this idea is accepted as a textbook fact. Learn more about the evidence and social factors that spurred the acceptance of this key aspect of evolutionary theory.
This article is available from the Understanding Science website.

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This research profile follows paleoanthropologist Jackson Njau as he investigates ancient predators, like crocodiles and large cats, in an effort to understand how these organisms shaped the evolution of our human ancestors.

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This activity (suitable for distance learning) is designed to introduce students to the nature and process of science through the discovery of mass extinctions in the fossil record. Students will explore the fossil record of brachiopods and bivalves using the Paleobiological Database, identify patterns in their data, and generate and evaluate hypotheses. They will also document this process using the Understanding Science flowchart. Clicking the link above will download the Word file for this lesson.

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This news brief, from October 2012, describes new research into the evolutionary response that ocean acidification may prompt in some plankton species.

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This news brief, from January of 2007, describes the role of phylogenetic evidence in a Libyan court case. Six medical workers have been convicted of injecting children with HIV-tainted blood - but the evolutionary history of the virus paints a different picture.

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This news brief, from December 2012, describes new research into how traffic noise affects insect populations. Several hypotheses to explain the change in grasshoppers' songs are examined.

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This news brief, from May 2012, describes new research on the end-Ordovician mass extinction and the lessons we might glean about extinctions going on around us today.

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In March 2010 German researchers announced that they had managed to extract DNA from the 40,000 year old fossil bone from a child discovered in a Siberian cave and that it didn't match up to the known genetic sequences of either humans or Neanderthals! This news brief examines the evidence in more detail and considers what that evidence might — or might not — mean about such claims.

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The earth is facing a biodiversity crisis. Nearly 50% of animal and plant species could disappear within our lifetime. To stem this rapid loss of biodiversity, we'll need to act quickly — but where should we begin? This news brief, from December 2008, explains how evolutionary history can help us set conservation priorities.

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Students learn why evolution is at the heart of a world health threat by investigating the increasing problem of antibiotic resistance in such menacing diseases as tuberculosis.

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This short slide set explains uniformity and variation in the process of photosynthesis across all life using evolutionary history. Save the slide set to your computer to view the explanation and notes that go along with each slide.

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Students examine evidence for the relationship between UV and melanin in other animals; investigate the genetic basis for constitutive skin color humans; learn to test for natural selection in mouse fur color; investigate how interactions between UV and skin color in humans can affect fitness; and explore data on migrations and gene frequency to show convergent evolution of skin color.

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Students will be introduced to a data set about mollusk genera that survived and did not survive the KT extinction event. They will formulate hypotheses regarding extinction patterns and mechanisms and analyze the data for evidence relevant to those hypotheses.

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In this article (and the linked assignments and student readings), students examine and interpret data that Melissa and Liz used to study the extinction bias in Caribbean lizards. Use the tabs at the bottom of the feature to find related videos, assignments, and lessons to build this example into a lesson sequence on extinction.

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Understanding the evolution of fire ants may help scientists control the spread of these pests, which have already taken over much of the U.S.

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Students are taken on an imaginary fossil hunt and hypothesize as to the identity of the creature they discover. Students revise their hypotheses as new evidence is "found."

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This research profile follows statistician and population geneticist Emilia Huerta-Sánchez as she studies the adaptations that allow Tibetan highlanders to live 13,000 feet above sea level without developing altitude sickness.

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This research profile follows ornithologist Kim Bostwick through the jungles of Ecuador and the halls of museums as she investigates the evolution of an exotic bird's complex mating dance.

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Through detailed analysis of patterns in the fossil record, scientist David Jablonski reconstructs the rules that helped dictate who lived and died in past mass extinctions. This research profile describes his surprising discoveries and their disturbing implications for the biodiversity crisis today.

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This set of teaching materials aims to help instructors engage their students with the primary literature in evolutionary biology through a "journal club" that can be implemented in a discussion section or smaller class. It includes several helpful tools: annotated articles, a reading guide, additional suggested reading, and tips for students leading a discussion of a journal article.

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Students read a 2005 paper on the fitness consequences of mate choice alongside an interactive guide that asks the reader to answer key questions about each section of the article.

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Find out how we investigate evolutionary adaptations by following two scientists and their team as they figure out how the willow leaf beetle survives in different climates.

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This set of two PowerPoint slides featuring questions for problem-based discussion (i.e., open-ended questions that engage students with each other and with course material) can be easily incorporated into lectures on natural selection.

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Students read a 2008 paper on the role of parasites in stabilizing the fig-pollinator mutualism alongside an interactive guide that explains each section of the paper and draws the reader's attention to important points in the article.

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This virtual lab teaches skills of data collection and analysis to study evolutionary processes using stickleback fish and fossil specimens.

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Students explore molecular data from Homo sapiens and four related primates and develop hypotheses regarding the ancestry of these five species by analyzing DNA sequences, protein sequences, and chromosomal maps.

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This adaptable instructional module uses insects as a model system to illustrate the biological impacts of climate change, with the goal of engaging students with a range of hands-on and minds-on activities that increase their understanding of how science works, evolutionary processes, and the impacts of climate change.

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In this article (and the linked assignments and student readings), students examine and interpret data that Molly and Felix used to study the causes of mutations that matter most for evolution. Use the tabs at the bottom of the feature to find related videos, assignments, and lessons to build this example into a lesson sequence on mutation.

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Students construct plausible scenarios using bank checks to learn how human values and biases influence observation and interpretation.

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This research profile follows scientist Chelsea Specht as she pieces together the evolutionary history of tropical plants and their pollinators--and in the process, tries to figure out how to conserve endangered species.

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This research profile follows scientist Satish Pillai as he studies the evolution of HIV within infected individuals. His research uses the tools of phylogenetics to investigate vaccine development and the possibility of curing the disease.

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In this lab, students measure the amount of variation in a natural population of terrestrial wood lice and then determine which traits are subject to selection by predators by performing a simulated predation experiment.

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This web-based module leads students through an exploration of the patterns in the diversity of life across planet Earth. Students are scaffolded as they practice data interpretation and scientific reasoning skills.

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In this set of advanced lessons, students use different types of data to infer/interpret phylogenies among domains, within the vertebrates, and within primates while reflecting on how they answer the question "What do you think it means to be human?" and choose a characteristic that changed substantially in the human family tree to develop a scientific argument based on evidence for when the character evolved.

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