Many birds use Earth's magnetic field for navigation.
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Some animals use camouflage to avoid predators.
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A cheetah can accelerate from 0 to 60 mph in a few seconds.
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Some butterflies migrate across continents.
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Certain species of frogs are active at night.
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The mantis shrimp has some of the most complex eyes in the animal kingdom.
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Some insects undergo complete metamorphosis from larva to adult.
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Octopuses have three hearts and blue blood.
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A crocodile can hold its breath underwater for an extended period.
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