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They hang upside-down from ceilings, and never lose their grip
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In Deer Cave, in Malaysia, wrinkled-lipped bats create a mountain of droppings
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Living for up to 80 years, they hunt within Japan's mountain rivers
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To deceive others, capuchin monkeys sound a false alarm
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Strange physics could explain how our brains work
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A wolf pack returns to find a grizzly bear in their territory
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Neanderthals' faces were more "modern" than ours
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Gentle tides make great places for fish to gather
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They are terrifying, but they also have an upside