The oldest creature ever found was Ming the clam at an admirable 507 years old.
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Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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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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In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
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One in three dog owners say they have talked to their pets on the phone.
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