More than half a billion years ago, a peculiar little creature with rows of spikes on its back and delicate, feather-like front limbs used to strain bits of food from the water thrived in the primordial seas of what is now China.
Scientists on Monday announced the discovery in Yunnan province of preserved fossils of one of the stranger animals ever to call Earth home. The creature, Collinsium ciliosum, lived during the Cambrian Period, a time of remarkable evolutionary experimentation when many unusual animals appeared and vanished.
"Collinsium is definitely an odd-looking animal, and if one were to bump into one of these during a snorkeling or diving trip nowadays it would be quite shocking," said University of Cambridge paleobiologist Javier Ortega-Hernandez, whose research appears in the Proceedings of the National Academy of Sciences.