Canon Creative Park (Japan) has released the hippopotamus papercraft on their Animal section. The name hippopotamus comes from the Greek word which means "river horse". The hippo is an extremely large African herbivore with a round body, short legs, and a big head. They are usually found in rivers and lakes. This papercraft is not available on their English site so I provided the link to its exact page.
Canon Papercraft Animal - Hippopotamus [Creative Park]