Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Sloths take two weeks to digest their food.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Jaguars frequently get high by eating hallucinogenic roots, which also increases their senses for hunting.
6
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.
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