Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
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
Dogs sometimes fake being sick to get attention.
26
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8