Sharks have been on the planet longer than trees.
14
A giraffe's kick is so powerful that it can decapitate a lion.
216
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Cats sleep for 70% of their lives.
8
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16