Jellyfish as a species are actually older than dinosaurs and sharks.
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There are approximately three chickens for every human on Earth.
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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.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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A domestic cat can sprint at about 31 miles per hour.
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