Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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The colossal squid has the largest eyes in the world.
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A scorpion can hold its breath for up to 6 days.
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Whales and dolphins can't taste anything other than salt.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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Cows can sleep standing up, but they can only dream lying down.
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Cats recognise the voice of their owner, but never evolved to care.
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