The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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Sloths take two weeks to digest their food.
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Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
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