Absolutely nothing in this world compares to the sound of a joyous baby's giggles, and this video is a delightful example of it. Shared by Dale, this endearing clip features him making his baby ...

Among humans, laughter can signify a lot of different things, from intimacy to discomfort. Among animals, however, laughter usually communicates something along the lines of “this is playtime—I’m not ...

Don’t try this at home, but tickling a gorilla, orangutan, bonobo or chimp can inspire bursts of grunting sounds. Yes, that’s laughter, says Marina Davila Ross of the University of Portsmouth in ...