From her studies, Fiona concluded that the relative absence of creepy-crawlies was the biggest reason chimpanzees build nests ...

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 ...