The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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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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Nicole Kidman is scared of butterflies.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
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