The ancestor of all domestic cats is the African Wild Cat which still exists today.
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It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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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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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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A group of unicorns is called a blessing.
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