It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
A 42-foot sperm whale has about 7 tons of oil in it.
209
Tigers can see 6 times better at night than humans.
305