On discovery channel series where they had animated versions of bears,tigers,lions,sharks etc in fictional fights they had footage of a gorilla pulling a length of bamboo over and snapping it in half then eating it.The bamboo was about 3 inch thick,so in the studio they set up hydraulic arms and put a piece of bamboo in to see what pressure it took to snap.It was nowhere near the thickness of the bamboo the gorilla snapped but still took something stupid like 1,000lbs of pressure.