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.

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Sound editing by Steven Ray Morris & Jarrett Sleeper

Transcripts by Emily White of The Wordary

Website by Kelly R. Dwyer

Theme song by Nick Thorburn