Rattlesnake mating sessions have been known to last more than 22 hours.
232
Dogs sometimes fake being sick to get attention.
26
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
Jellyfish as a species are actually older than dinosaurs and sharks.
383
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
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6