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When young bluebirds don't leave the nest

For a young male western bluebird, it might be better to live with one's parents as a helper for a year before starting a nest of one's own, according to a new study in Behavioral Ecology.

An evolutionary heads-up—the brain size advantage

A larger brain brings better cognitive performance. And so it seems only logical that a larger brain would offer a higher survival potential. In the course of evolution, large brains should therefore win out over smaller ...

For juvenile moose, momma's boys and girls fare best

Based on ten years of fieldwork in the Tetons of Wyoming, WCS Conservation Biologist, University of Montana Professor and study author Dr. Joel Berger looked at whether body size of juvenile moose and maternal presence were ...

In shipwrecks, men more likely to survive: study

The notion that women and children are rescued first during a shipwreck is a myth, scientists said Monday after analyzing 18 maritime disasters that show men generally save themselves.