Early American humans hunted car-size armadillos and used their shells for houses.
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Parrot parents "name" their children with a signature call.
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The largest earthworm on record was found in South Africa and measured 22 feet.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
The elephant brain weighs about 6,000g.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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