News tagged with evolutionary biologists

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Racing to identify species as biodiversity shrinks

A little more than 39 years ago, on December 28, 1973, the Endangered Species Act was enacted to conserve threatened and endangered species and their ecosystems. To honor this anniversary, Daphne Fautin of ...

Jan 07, 2013
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The origins of a genetic switch

Cilia, microscopic whip-like organelles that protrude from the surface of many cell types, are almost ubiquitous. They are present in all eukaryotes—organisms whose cells have a nucleus—and have diversified ...

Jan 02, 2013
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It pays to cooperate

Many species exhibit cooperative survival strategies—for example, sharing food or alerting other individuals when a predator is nearby. However, there are almost always freeloaders in the population who will take advantage ...

Nov 13, 2012
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Keeping time: Circadian clocks

Our planet was revolving on its axis, turning night into day every 24 hours, for 4.5 billion years - long before any form of life existed here. About a billion years later, the very first simple bacterial ...

Oct 02, 2012
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