Tiny tracks of 1st complex animal life found
Thursday, June 28, 2012 - 16:30
in Paleontology & Archaeology
A teensy sluglike animal that wriggled around the sediment in search of food at least 585 million years ago didn't die in vain. The tiny mover left behind tracks that researchers now say represent evidence of the earliest known bilateral animal, or multicellular life with bilateral symmetry.