If we saw a crocodile hanging out in our favorite watering hole (yes, we have a favorite for the purposes of this scenario) we'd happily choose a new watering hole. Elephants, on the other hand, nobody tells them to go somewhere else. The adult elephants have a problem slight pushing the crocs away so the calves can play in the water in peace.
Speaking of animal kids, they are born with some high expectations. A baby rhino at the Sabi Sabi Reserve is only an hour old and is already walking. Makes human babies look lazy by comparison.