Sheep, goats, octopuses, and toads have rectangular pupils.
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The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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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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Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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A giraffe's kick is so powerful that it can decapitate a lion.
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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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The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
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