"The Three Amigos"
			The nostrils close and ears fold into recesses when underwater. Upon resurfacing, the nostrils open wide to release the breath and the ears pop erect tossing water about. Hippos even resurface to breathe during sleep, as involuntarily as breathing. They can move quickly under water. On land they only run if necessary. They can climb steep banks, but cannot jump, and hesitate to step over any obstacle.
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