Mnyama
Kufuatana na aina ya chakula tunatofautisha hasa wanaokula mimea wanaoitwa walamani au walamea (kwa Kiingereza: herbivorous) na wanaokula nyama wanaoitwa walanyama au wagwizi (ing. carnivorous). Kuna pia walavyote (ing. omnivorous) wanaoweza kula kila kitu, ama mimea ama wanyama wengine (ing. omnivorous).