It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cats sleep for 70% of their lives.
8
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11