Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
Cats and dogs can hear ultrasound.
350
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
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