As you may know, Hippopotomus (Hippopotomus Amphibius) is derived from two Greek words…..hippos (horse) and potamus(river). A truer name could not have been created. They spend most of their days lolling about in rivers or waterways, coming out to graze at dawn or dusk.
They are the third largest land mammal after the elephant and rhino (1 1/2-3 tons), yet are capable of running at about 19 mph. They are among the artiodactyl (even toed) creatures with four toes, and although they clearly resemble pigs, they are originally derived from the whale and porpoise .Their ancestral roots go back 16 million years in time. These three were seen in the Ngorongoro Caldera in Tanzania, Africa.