Unlike most other semiaquatic animals, the hippopotamus has very little hair. The skin is 15 cm (6 in) thick, providing it great protection against conspecifics and predators
pernah tgk dokumentari baru2 ni. Hippo kene serang seekor singa je. Memandangkan masa tu hippo tu jauh dari sungai, last2 kesan luka dari semakin teruk, tambah plak dehidrat. In the end, beberapa meter je nak kembali ke sungai...KIOK.