Researchers discovered that animal color vision evolved long before colorful fruits and flowers, with warning and sexual ...

A 'one of a kind' fossil discovery could transform our understanding of how the unique brains and intelligence of modern birds evolved, one of the most enduring mysteries of vertebrate evolution.

This is a summary of: Giger, G. H. et al. Inducing novel endosymbioses by implanting bacteria in fungi. Nature 635, 415–422 ...

The brains of today's birds facilitate a level of cognitive prowess and behavioral complexity rivaled only by mammals. But ...