Think telling sparrows apart is just not worth the effort? Our tips might change your mind. Identify sparrows by habitat, ...

Birds are the most diverse land vertebrate on the planet, and now scientists have constructed a complete evolutionary tree of the 11,000 or so known species. This data came from hundreds of studies ...

Rachel Buxton receives funding from Natural Sciences and Engineering Research Council of Canada, National Institutes of Health, and Environment and Climate Change Canada. Emma J. Hudgins received ...