When dragonflies mate, their tails form a love heart.
22
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
In Australia, there are spiders big enough to eat snakes.
20
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6