Dining on dinosaurs

时间:2019-03-07 03:15:12166网络整理admin

By Jeff Hecht TICKS were putting the bite on animals back in the days when dinosaurs roamed the Earth. A 90-million-year-old fossil tick has been found by palaeontologists in a block of amber, uncovered on a building site in New Jersey. It is the oldest tick ever found, pushing back their origin some 50 million years, says Hans Klompen, an entomologist at Ohio State University. Although mites, the parent group of ticks, were among the first land animals 400 million years ago, ticks did not evolve until much later. Until the New Jersey discovery,