If noisy chewing bothers you, never date a sea urchin. New Zealand scientists say they have confirmed that the spiny sea creatures are responsible for a mysterious, twice-daily uproar heard underwater.

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Scientists have unravelled the genetic code of the sea urchin, an animal whose evolutionary lineage may be key to understanding the relationship of humans and other vertebrates to invertebrates.

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Meet your new evolutionary cousin, the sea urchin. By analyzing the newly sequenced genome of the spineless creature, an international team of scientists found just how much we have in common with them.

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