Hippopotamus

Hippopotamus are famous mammals, they are present in a lot of cartoons and popular culture.

Biome/Spawn
Nile Hippopotamus (Hippopotamus amphibius) are sort of common on Swamp biome; 24% chance (1-3 mobs).

Behavior
Hippopotamus are agressive if provoked and will attack the player. They will attack Cod, Salmon and Tropical Fishes.

Taming/Breeding
Hippopotamus are wild and agressive to be tamed. They can be Breed and lured with Raw Cod.