Hippopotamus handle-less majolica toby jug produced by Sarreguemines of Lorraine, France, circa 1910, model number 3523. The hippopotamus is a large semiaquatic mammal native to sub-Saharan Africa. The hippopotamus is one of the largest land mammals. Hippos are recognizable for their barrel-shaped torsos, wide-opening mouths with large canine tusks, nearly hairless bodies, pillar-like legs, and large size. Hippos inhabit rivers, lakes, and mangrove swamps. Territorial bulls each preside over a stretch of water and a group of five to thirty cows and calves. During the day, hippos remain cool by staying in water or mud, emerging at dusk to graze on grasses. This Hippopotamus can be gripped anywhere around his ample belly.