In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
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Rattlesnake mating sessions have been known to last more than 22 hours.
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The colossal squid has the largest eyes in the world.
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A group of pugs is called a grumble.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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