Humans 'evolved from worm creature'

Humans evolved from a two-inch long worm-like creature that wriggled in the sea more than 500 million years ago, scientists have learned...
http://uk.news.yahoo.com/humans-evolved-worm-creature-125105932.html

More terrible phrasing from yahoo... No, we didn't evolve from a worm like creature, but yes, it is a very old ancestor. It's basically the first animal with a notochord. (First chordate)