In what food chain is the lion?

The lion is on top of the food chain. It is an apex predator and preys on all mammals and herbivores that live in the forest. Male Elephants have been known to kill Lions when in Musth but apart from this, Lions have no natural enemies that can kill them. The prey species for lions include buffalo, zebra, gazelle, giraffe and even an occasional hippo or an elephant calf