Eastern chimpanzees in the northern Democratic Republic of Congo frequently build nests and sleep overnight on the ground even in areas where predators are present, a recent study finds. The ability ...

Daurian redstarts move their nesting sites closer to or even inside human settlements when cuckoos are around. In doing so, they actively protect their nest against brood parasitism, as cuckoos avoid ...

It is spring in the northern hemisphere and birds initiate the remarkable architectural feat of building a home for the young. How is this accomplished? Hormones and Getting in the Mood Much of the ...