Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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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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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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Early American humans hunted car-size armadillos and used their shells for houses.
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There's a lizard known as the 'Jesus Lizard' that can run across water.
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By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
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When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
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