A long-neglected fossil seems to show the evolutionary leap that let the ancestors of today’s many-legged arthropods crawl forth from the seas.
Some 425 million years ago, leggy creatures called myriapods crawled onto land and never looked back.
Today, the 13,000 species of centipedes, millipedes and other living myriapods (from the Greek words for “countless” and “legs”) are found in nearly... [1536 chars]