Cambrian worms (Introduction)

by David Turell , Tuesday, October 09, 2012, 15:35 (4430 days ago)

All the way from 505 million years ago, these worms show little change:-http://phys.org/news/2012-10-marine-worms-reveal-deepest-evolutionary.html-Apparently they were never destined to be very complex. Is evolution pre-programmed?