Worker naked mole-rats take care of their colony's young even though they aren't the pups' actual parents. New research suggests the queen gets them ready via hormones in her poop.
Nisarg Desai observes wild chimps known as Sandi, Ferdinand and Siri in Tanzania.
Michael Wilson
Do chimpanzee talk to each other? Scientists follow and record chimpanzees in the wild to find out – and to fill in details about how human language might have evolved.
Slow, lazy, stupid? It's time to update your impression of the crocodilians. These animals are up to amazing things that we're only beginning to observe and recognize.