We're bringing back one shell of an episode with today's encore. What's a tortoise? What's a turtle? Why do they live so dang long? What's up with their junk? Wildlife biologist and testudinologist Amanda Hipps studies gopher tortoises and dishes about turtle nomenclature, cliques, dicks, behavior, burrows, evolution, habitats and more. If you don't dig tortoises yet, you're about to fall deep into a turtle tunnel in love with them.Follow Amanda Hipps on Instagram or TwitterThis week's donation was made to AlongsideWildlifeFoundation.orgSponsor link: www.thegreatcourses.com/ologiesMore links at www.alieward.com/ologies/testudinologyBecome a patron of Ologies for as little as a buck a month: www.Patreon.com/ologiesOlogiesMerch.com has hats, shirts, pins, totes!Follow @Ologies on Twitter or InstagramFollow @AlieWard on Twitter or InstagramSound editing by Steven Ray Morris & Jarrett SleeperTheme song by Nick Thorburn  Support the show: http://Patreon.com/ologies