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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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We typically think of evolution occurring within populations of organisms. But in fact, evolutionary concepts can be applied even beyond the biological world. Any system that has variation, differential reproduction, and some form of inheritance will evolve if given enough time. Find out how an understanding of evolution can illuminate the field of linguistics.

This article appears at SpringerLink.

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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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Human activity has certainly affected our physical environment - but it is also changing the course of evolution. This research profile follows scientist David O. Conover as he investigates the impact of our fishing practices on fish evolution and discovers what happened to the big ones that got away.

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This research profile examines how the scientist Carl Bergstrom uses computer modeling to understand and control the evolution of antibiotic resistant bacteria in hospitals.

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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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Medical researchers have spent billions of dollars and many decades trying to develop an HIV vaccine but have, thus far, failed. Why is an HIV vaccine so elusive? This news brief from March 2007 explains how HIV's rapid rate of evolution challenges medicine and describes a new discovery that may allow vaccine developers to sidestep that evolution.

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Even as the world loses species at an unprecedented rate, conservationists are struggling to save them. But where should they focus their efforts? This news brief from September 2009 describes new research suggesting that evolutionary history is an important factor in determining which species are at the gravest risk of extinction.

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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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In October 2011, the World Health Organization announced that tuberculosis cases are on the decline for the first time in at least 20 years. Our battle against this ancient disease has been fought, in part, through the use of antibiotics like streptomycin. This news brief describes the 1.8 billion year evolutionary history behind these drugs.

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This news brief, from October of 2007, describes the evolutionary underpinnings of cancer. Recognizing cancer as a form of cellular evolution helps explain why a cure remains elusive and points the way toward new treatments.

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This news brief from May 2013 describes research showing that a large percentage of the meat in supermarkets is contaminated with antibiotic resistant bacteria. An evolutionary perspective explains how antibiotic resistance arises in the first place and why the prevalence of resistant bugs in livestock has health professionals and scientists worried.

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This news brief of September 2010 examines the resurgence of bed bugs throughout the country, and the real bad news is that those bed bugs have evolved resistance to the chemicals most commonly used for eradication.

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This news brief from April 2009 describes how synthetic biologists are using the process of directed evolution to improve the efficiency of biofuel production.

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Biologists have discovered that female cheetahs consistently seek out multiple mates. This news brief, from July 2007, explains how the evolutionary implications of this behavior may help conservation efforts targeting these endangered animals.

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This news brief, from April 2012, describes how climate change is affecting a population of chipmunks in Yosemite National Park. The chipmunks' loss of genetic variation may affect their ability to survive and their future evolutionary potential.

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This news brief, from April 2006, chronicles how researchers are using evolutionary theory to guide their strategies for conserving a critically endangered parrot - with some impressive results!

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This news brief from May 2009 explores the difference between phenotypic plasticity and evolutionary change in relation to the media's coverage of climate change.

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This news brief, from November of 2005, describes the threat of avian flu. The stage is set for this virus to evolve into a strain that could cause a deadly global pandemic.

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This news brief, from March 2006, describes how DNA fingerprinting is being used to prosecute and exonerate the accused. DNA fingerprinting relies on the processes of mutation and genome evolution.

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This news brief from December 2007 describes a new virulent strain of the common cold and examines how and why virulence evolves.

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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 June 2007, explains how biologists are using evolutionary theory to protect the biodiversity that exists today and that may evolve tomorrow.

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This news brief from December 2009 focuses on one of the world's most deadly infectious diseases: malaria. Malaria is normally treatable, but now some strains are evolving resistance to our most effective drug. Find out how researchers and doctors are trying to control the evolution of the disease.

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The percentage of southwestern whiteflies infected with Rickettsia bacteria has skyrocketed; but this is not a boon for local farmers, as the bacterium actively helps the pest spread. This news brief examines how evolutionary theory accounts for this and how we might turn it in our favor.

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This news brief, from November 2007, turns an evolutionary lens on businesses that use DNA for genealogy research and, in the process, illuminates what their genetic tests really track.

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In the 1990s, scientists predicted that the Florida panther would be extinct within 20 years and, in 1995, formulated a bold plan to save them. This news brief of December 2010 reports on the success of that plan which gave the panther a second lease on life by the infusion of genetic variation.

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First described in 1981, HIV is a distinctly modern disease. But for how long before its discovery did HIV lurk unnoticed in human populations? This news brief from November 2008 describes new research offering insight into when (and how) HIV got its start.

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This news brief from November 2020 explains how a gene from Neanderthals made its way into human populations and now affects COVID-19 risk.

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Some vaccines provide lifelong protection with one or a few doses, but the flu requires a new shot every year. And in some years, the flu shot is hardly effective at all. Why is the flu vaccine different from so many other vaccines? This news brief from February 2013 provides the evolutionary explanation.

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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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This news brief, from September of 2005, describes the FDA ban on the use of the antibiotic Baytril in poultry production. The decision was made in order to reduce the danger presented by the evolution of antibiotic resistant bacteria.

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This news brief from April 2013 describes new research on the origin of American cattle breeds. The story told by the cows' genes crisscrosses the trajectory of human evolutionary history from wild aurochs that lived alongside Neanderthals, to Christopher Columbus and, ultimately, the American West.

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This news brief from January 2022, explores the evolutionary mystery at the heart of the Omicron COVID-19 surge.

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This news brief from April 2010 describes what scientists have learned by extracting DNA from a polar bear fossil more than 100,000 years old. Though the fossil itself was just a fragment of the skeleton -the lower left portion of the jaw, still containing a tooth- the DNA had a lot to say about polar bear evolution.

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More than 500 species of cichlid fish inhabit Africa's Lake Victoria. This news brief from March 2009 explains new research suggesting that the physics of light may have played an important role in cichlid diversification and in the recent drop in their diversity.

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Most infectious diseases that we are familiar with are passed from human to human; however, on evolutionary timescales, pathogens don't necessarily respect species boundaries. This news brief from November 2010 examines a recently discovered case of disease swapping among species involving a deadly strain of malaria.

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Methicillin-resistant staph infections now contribute to more US deaths than does HIV. This news brief from April of 2008 explains the quirks of bacterial evolution that make them such a threat.

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This news brief from March 2010 describes a new fitness trend: barefoot running. Though it might sound like just another fitness fad, soon to go the way of hula-hoops or jazzercise, this trend has a surprising connection to evolution.

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Though corn is "all-natural" in some ways, in others it is entirely manmade. This news brief from February 2007 explains the evolutionary tools that ancient humans used to engineer modern corn and the tools that scientists are using today to reconstruct corn's evolutionary history.

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This news brief from March 2013 describes new research suggesting that human dietary changes associated with the invention of agriculture and the Industrial Evolution caused an epidemic of tooth decay and gum disease. This link between diet and oral health is an example of a mismatch to modernity, a case in which a disease results from a modern lifestyle feature that our lineage has not experienced during the course of its evolutionary history.

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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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This news brief from March 2011 examines the genetic basis for the evolution of resistance to PCBs in the Hudson River tomcod. Though this is great for the tomcod, what might it mean for other organisms in the ecosystem?

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This news brief, from January of 2006, traces the source of the SARS virus. Using phylogenetics, biologists have come up with a plausible path of transmission which may help us prevent future outbreaks of diseases such as HIV, SARS, and West Nile virus.

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This news brief, from December 2011, describes how evolutionary history can factor into the success of a bone marrow transplant.

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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 the fidelity of DNA replication in evolutionary terms. Save the slide set to your computer to view the explanation and notes that go along with each slide.

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This short slide set weaves basic information about carbohydrates, proteins, and nucleic acids into one evolutionary story regarding the evolution of lactose tolerance, which relates to students' everyday lives. Save the slide set to your computer to view the explanation and notes that go along with each slide.

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This article describes practical applications of phylogenetics, focusing on intriguing cases ripe for deployment in classrooms — like using phylogenetics to investigate crimes.
This article appears at SpringerLink.

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In this article (and the linked assignments and student readings), students examine and interpret data that Shan, David, and Stewart used to investigate whether the mollusk species that humans eat are inherently vulnerable to extinction. 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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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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This research profile examines how scientist Andy Ellington has co-opted the power of artificial selection to construct new, useful molecules in his lab. The results of his work could help protect us from terrorist attacks and fight HIV and cancer.

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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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El tema de septiembre, biodiversidad y conservación, en celebración del Año de la Ciencia, la historia de este mes esta basada en el enemigo de la diversidad: la extinción. El mundo se enfrenta a lo que podría ser la sexta extinción masiva. Estamos perdiendo especies a un ritmo sin precedentes — 100 a 1000 veces más alto que a lo largo de la mayor parte de la historia de la tierra...

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Este resumen de noticias de noviembre de 2020 explica cómo un gen de los Neandertales que se introdujo en las poblaciones de los humanos modernos, afecta al riesgo de padecer COVID-19.

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Las chinches de cama puede parecer un viejo problema pasado de moda, sin embargo ahora están de vuelta — y con venganza. Hace cincuenta años, estas plagas chupadoras de sangre estaban casi erradicadas en los Estados Unidos gracias, en parte, al uso de pesticidas como el DDT. Hoy, se arrastran entre las sabanas — y atormentan a los desgraciados soñadores — en todo el país...

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In this advanced 4-lesson curriculum unit, students examine evidence to compare four different explanations for why many malarial parasites are resistant to antimalarial drugs; investigate how scientific arguments using G6PD data show support for natural selection in humans; design an investigation using a simulation based on the Hardy-Weinberg principle to explore mechanisms of evolution; and apply their understanding to other alleles that have evolved in response to malaria.

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Actualmente, la mayoría de nosotros llenamos nuestro tanque de gasolina con combustibles fósiles, es decir, restos de plantas y animales que murieron muchos millones de años atrás y eventualmente se convirtieron en petróleo — pero, por supuesto, esto no puede perdurar para siempre. El petróleo es un recurso limitado y en algún momento se va a terminar. Para ayudar a solucionar este problema, muchos científicos, políticos, gente de negocios y ciudadanos preocupados han puesto sus esperanzas en los biocombustibles...

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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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Durante el último mes, las cepas del SARS-CoV-2 Omicron han dominado los noticiarios del mundo. Esta variante de rápida transmisión ha llevado a limitar viajes, a cancelar planes de vacaciones, al agotamiento de los kits de pruebas, a la vuelta de los confinamientos, y además a un asombroso número de nuevos casos de COVID-19. Los científicos rápidamente se han puesto a estudiar Omicron, intentando entender qué tan rápido se transmite, qué tanto nos enferma, y si es resistente a los tratamientos, a las vacunas, y a los anticuerpos de infecciones de COVID previas. Necesitamos revisar todas estas cuestiones porque Omicron es muy diferente de otras cepas de coronavirus. Omicron ha acumulado más de 50 nuevas mutaciones en comparación con la cepa que empezó la pandemia. Además Omicron no es un descendiente de la cepa Delta, responsable de la anterior ola de infecciones. De hecho, Omicron es tan diferente de otras variantes que parece que ha estado evolucionando por su cuenta durante muchos meses. Y esto nos conduce a otro misterio que los científicos están tratando de resolver: ¿dónde estaba Omicron escondido mientras toda esta evolución tenía lugar?

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This hands-on activity, used in conjunction with a short film, teaches students about population genetics, the Hardy-Weinberg principle, and how natural selection alters the frequency distribution of heritable traits. It

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Evolución en las noticias relata una reciente historia que señala como comprender física básica puede revelar como la evolución esta ocurriendo hoy — en especial, como la física de la luz tiene influencia sobre la selección sexual, especiación y el colapso de la biodiversidad, producto de la polución causada por los humanos...

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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 lecture two of a four part series, evolutionary biologist David Kingsley discusses how just a few small genetic changes can have a big effect on morphology, using examples from maize, dog breeding, and stickleback fish.

This lecture is available from Howard Hughes' BioInteractive website.

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