Quote from : Whatever You Do, Don't Run: True Tales of a Botswana Safari Guide Book

This tree, though, had not been fed on, so it was apparent that the culprit was a bull (elephant) who was filled with testosterone but no outlet for it, so he pushed over trees. It's a great release for a bull and a way of showing his strength after a female has rejected him. If human males had the same ability, global deforestation would be complete by now.