December 14, 2021--Hosts Tim Bray and Bob Spies talk with Dr. Edwin Grosholz of the University of California at Davis, who has been conducting research on Green Crabs on the Pacific coast. Anglers trying for Dungeness crab in the Mendocino rivers have been pulling up lots of small greenish crabs instead - the invasive European Green Crab. Hear the story of how they got here and how they are affecting the ecosystems as well as fisheries.