Why would a yearling cow die?

There are many different reasons that a yearling calf could die. Or any cow. !) It was born with a defect that finally killed it. 2) It could have contracted a illness that could have killed it.3) A predator could have killed it, the kind of predator would depend on the area the calf lived in. 4) It could have been killed by humans for food. 5) It could have fell and broke something, neck-instant death, leg-person could shoot to relive it's pain. The list could go on and on as long as someone can thing of something.