540m-year-old bug tracks are oldest footprints ever discovered

Ancient prints bring scientists closer to understanding what were the first creatures to evolve pairs of legsThe oldest known footprints on Earth, left by an ancient creepy-crawly more than 500 million years ago, have been discovered in China.The tracks were left by a primitive ancestor of modern-day insects or worms, according to scientists. Precisely what the creature looked like is a mystery, though: nothing this old with legs has been discovered to date.Continue reading...
Source: Guardian Unlimited Science - Category: Science Authors: Tags: Zoology Science Insects Evolution Archaeology China Source Type: news