Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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Cats recognise the voice of their owner, but never evolved to care.
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Cats sleep for 70% of their lives.
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A group of kittens is called a "kindle".
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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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