What in the food chain would eat a cow?

Humans. in some countries snake is a delicacy

well,if a fox ever went near the ocean, a shark could eat it, or, if not then maybe a wolf, like if they had a fight, otherwise no animal would eat a fox

A rabbit,birds and mice.

well if i get your question right, wolves are in the carnivorous food chain, they are eaten by bears, large birds, other wolves, cyotes, foxes, badgers, and pretty much any carnivore that can catch a...

The consumers eat the producers. For instance, a cow eats grass.