The glass frog's translucent skin makes its beating heart and digestive system visible from outside.
Fact #9668
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A sea anemone uses stinging cells to capture prey.
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A polar bear once became an official member of a military unit in Norway.
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The Moon was formed billions of years ago.
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A lion's roar can be heard from several miles away.
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The human body contains trillions of cells.
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Some animals can regenerate entire body parts.
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Hippopotamuses secrete a reddish fluid that helps protect their skin.
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A polar bear’s sense of smell is extremely powerful.
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