There's a rare breed of pig that looks like a sheep.
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Cats recognise the voice of their owner, but never evolved to care.
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Lobsters have blue blood.
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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
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A 42-foot sperm whale has about 7 tons of oil in it.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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