C
A community is a group of animals that coexist in the same environment
Answer:
I would say overpopulation
Thus because when they are trying to navigate through jungles, they are destorying whats in their path, without realizing. There are so many of the elephants it just keeps happening over and over like a cycle.
The brain is most of the ape's main gimmicks, aside from the opposable thumb. It allows us to not die without claws, fangs, and other evolutionary benefits.