'Living fossil' may upend basic tenet of evolutionary theory

The field of evolutionary biology has seen its share of spirited debates. But if there's one principle that virtually every expert in the field agrees on, it's that natural selection occurs at the level of the genome.

Understanding why songbirds choose their homes

New research by University of Alberta biologists uses a new approach to modelling the populations of six species of songbirds in Canada's boreal forest—and the results show that standard modeling methods may not be accurately ...

Red-winged blackbird nestlings go silent when predators are near

If you're a predator that eats baby birds—say, an American Crow—eavesdropping on the begging calls of nestlings can be an easy way to find your next meal. But do baby birds change their begging behavior when predators ...

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