A new study used modern methods to reassess a foundational study in biology that explained how ecologically similar species of wood warblers coexist. The research team examined foraging behavior, ...

A brave hummingbird does what she can to fight a fire in Sascha Alper's new book. It was one of the last projects illustrator ...

In fact, social monogamy is extremely common in birds and somewhat common in mammals, while sexual monogamy is vanishingly ...