Who booped who?
Watch a playful young hippo chase around a crocodile., a biologist at the University of Tennessee at Knoxville, developed a scientific definition of play: “Repeated, pleasurable behavior done for its own sake that's similar, but not identical to, other behaviors in which the animal regularly engages. It also must be seen when the animal is healthy and not under stress.”
Yet “play behavior is really understudied, and we still have very little idea about what its actual function is,” Heathcote says. One point Dheer is quite sure on is that neither of these species actually kiss. “It's always tempting to anthropomorphize animals, but I don't see this as much of a love affair,” he says.
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