There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
There's a rare breed of pig that looks like a sheep.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
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When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
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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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12