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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Sheep, goats, octopuses, and toads have rectangular pupils.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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