It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
An elephant's tooth can weigh as much as 12 pounds.
24
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Some ribbon worms will eat themselves if they can't find any food.
-33
The cat brain weighs about 30g.
167
Rats multiply so quickly that in 18 months, two rats could have over a million descendants.
33
The faster a kangaroo hops, the less energy it burns!
58
