Spiky Little Sea 'Monster' Thrived a Half Billion Years Ago

More than half a billion years ago, a peculiar little creature with rows of spikes on its back and delicate, featherlike front limbs that could 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 beautifully 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...

© La Voix de l'Amérique - mercredi 1^er juillet 2015