Sharks are older than trees — they appeared about 450 million years ago, trees about 360 million years ago.
Fact #5748
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The Megalodon lived millions of years before humans appeared.
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The first successful human heart transplant was performed in 1967.
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Certain fish can inflate their bodies to appear larger.
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Some fish can learn by observing other fish.
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The human body contains trillions of cells.
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A polar bear's fur is actually transparent.
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The human body contains about 206 bones.
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The invention of dialysis allows patients with kidney failure to survive.
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