News tagged with natural selection

Cheating favors extinction

Cooperative behaviour is widely observed in nature, but there remains the possibility that so-called 'cheaters' can exploit the system, taking without giving, with uncertain consequences for the social unit ...

Apr 30, 2013
4.1 / 5 (16) 70 | with audio podcast

Long-tailed tits help each other out

Long-tailed tits which lose their eggs or young may help to feed neighbours' chicks, researchers have found. But the degree to which they'll co-operate varies from year to year.

Mar 21, 2013
not rated yet 0 | with audio podcast

A snapshot of pupfish evolution in action

Chris Martin has bred more than 3,000 hybrid fish in his time as a graduate student in evolution and ecology at UC Davis, a pursuit that has helped him create one of the most comprehensive snapshots of natural ...

Jan 10, 2013
4.5 / 5 (4) 0 | with audio podcast

Networking ability a family trait in monkeys

Two years of painstaking observation on the social interactions of a troop of free-ranging monkeys and an analysis of their family trees has found signs of natural selection affecting the behavior of the descendants.

Jan 09, 2013
2 / 5 (1) 0 | with audio podcast