450-Million-Year-Old Marine Creatures 'Babysat' Their Young The oldest fossil evidence of animal "babysitting" now comes from 450-million-year-old rocks in New York. Small marine animals called ostracods, a group of crustaceans that includes more than 20,000 species living today, were discovered buried with their eggs and young by a team led by researchers from the University of Leicester in Britain. "This is a very rare and exciting find from the fossil ...
March 13, 2014 - LiveScience.com via Yahoo! News