On a remote island in Lake Superior, scientists struggle to solve the problem of xenotransplatation - using animal tissue to replace failing human organs.

This week Derek and Swoopy talk to a legend in Skeptical broadcasting, Reginald Finley, known to his friends as The Infidel Guy and we take part in Monday Bloody Monday as we help launch the publication of author Scott Sigler's newest podiobook to print: Ancestor.