Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Squirrels forget where they hide about half of their nuts.
698
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Rattlesnake mating sessions have been known to last more than 22 hours.
232
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Mosquitoes don't just bite you, they also pee on you.
11