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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Only 3% of bird species have penises.
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Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
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The cat brain weighs about 30g.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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A group of kittens is called a "kindle".
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A scorpion can hold its breath for up to 6 days.
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