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Phallus-shaped worm-like creature sheds light on Earth’s biodiversity

Fossilised forms of a phallus-shaped invertebrate have shed light on a dramatic spurt in Earth’s biodiversity that occurred half a billion years ago, Canadian scientists reported on Wednesday. Remains of 10-centimetre (four-inch) worm-like creatures were found in shale beds in Yoho National Park in the Canadian Rocky Mountains. The sediment…