On this episode of ID the Future, Casey Luskin interviews Scientific Dissent From Darwinism signer, biologist Mauricio Alcocer Ruthling, about the scientific problems with evolution. Dr. Alcocer Ruthling received his Ph.D. in plant science from the University of Idaho and is now Director of Graduate Studies at the Universidad Autónoma in Guadalajara, Mexico. Dr. Alcocer Ruthling has studied the importance of fitness costs to the use of herbicides and explains why fitness costs demonstrate the existence of genetic barriers to evolution.