News tagged with evolutionary biology

Cheating slime mold gets the upper hand

A 'cheater' mutation (chtB) in Dictyostelium discoideum, a free living slime mould able to co-operate as social organism when food is scarce, allows the cheater strain to exploit its social partner, finds ...

Jan 08, 2013
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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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Advance in chromosomal evolution in sea cradles

A chromosomal study performed in a common Mediterranean chiton (sea cradle) provides information, relevant to systematic relationships of the species; furthermore the comparison of its karyotype with ones ...

Dec 12, 2012
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