A 520-million-year-old sea creature has been unearthed in Greenland. The ancient Cambrian organism used its comblike appendages to rake the seas for tiny shrimplike foods,
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In Images: A Filter-Feeding Cambrian Creature
A 520-million-year-old sea creature has been unearthed in Greenland. The ancient Cambrian organism used its comblike appendages to rake the seas for tiny shrimplike foods,
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