Comedian and recent Portland transplant Caitlin Weierhauser (@UncleCait) joins returning guest TJ Chambers (@tjchambersLA) to talk about the surprisingly extensive history of McDonaldland characters, how dogs' eyes evolved to appeal to humans, a notably droopy dog breed, a recently scrapped Indian space mission, female jockeys being underestimated by the betting public , a recent study critical of psychiatric diagnosis and a magical island where the koalas are free of chlamydia.

This episode is brought to you by The Great Courses Plus, offering Probably Science listeners a free month of unlimited access to thousands of lectures by visiting TheGreatCoursesPlus.com/probably