mother and baby couplehippopotamus named “moo deng” at khao kheow open zoo

africa african amphibian amphibius animal animals aquatic baby background big body botswana brown choeropsis chonburi cute dangerous deng dwarf eating endangered environment fat flower food forest garden grass green head herbivore hippo hippopotamus invertebrate jungle khao kheow large lawn leaf mammal mammals moo mother mouth natural nature open plant produce pygmy reptile small soil thailand tree tropical water wild wildlife young zoo