Even turtles need recess: Many animals -- not just dogs, cats, and monkeys -- need a little play time

ScienceDaily (2010-10-24) -- Seeing a child or a dog play is not a foreign sight. But what about a turtle or even a wasp? Apparently, they play, too. New psychology research defines "play" in people and also in species not previously thought capable of play, such as fish, reptiles and invertebrates.