News tagged with fitness

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Rethinking the roots of altruism

For decades, researchers working to understand how altruistic behavior evolved have relied on a concept known as inclusive fitness, which holds that organisms receive an evolutionary benefit—and are able ...

Jan 13, 2014 4.2 / 5 (10) 30 | with audio podcast

Declining sea ice strands baby harp seals

Young harp seals off the eastern coast of Canada are at much higher risk of getting stranded than adult seals because of shrinking sea ice cover caused by recent warming in the North Atlantic, according to ...

Jul 22, 2013 3.3 / 5 (7) 3 | with audio podcast

The fight against genome parasites

In the gonads of animals, genome parasites such as transposons pose a serious threat to evolutionary fitness. With their ability to bounce around in the genome, they often cause dangerous mutations. To protect ...

Jun 04, 2013 not rated yet 0