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
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Sharks, like other fish, have their reproductive organs in their chests.
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Travis was a chimpanzee who socialized with humans since birth. He could log onto a computer to look at pictures, watch TV using a remote control, brush his teeth, feed hay to his owner's horses, water plants, and learned the schedule of passing ice cream trucks.
11
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
It has been scientifically proven that stroking a cat can lower one's blood pressure!
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