Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A blue whale's aorta (the main blood vessel) is large enough for a human to crawl through.
52
Cat urine glows under a black-light!
43
More than 90% of shark attack victims survive.
41
Rats multiply so quickly that in 18 months, two rats could have over a million descendants.
33
Elephants, lions, and camels roamed Alaska 12,000 years ago.
32