The final stop of the Probably Science Australia tour brings Andy and Matt to Melbourne on Valentine's Day, where they welcome Sheree Marris (@shereemarris), author of Kama SEAtra, and returning guest Wil Anderson (@Wil_Anderson) to discuss the sex lives of aquatic creatures, male seahorses who birth thousands of babies, necking sea slugs, barnacle penises, cross-dressing cuttlefish and the fact that the city of of Melbourne was almost called Batmania.

This episode is brought to you thanks to the generosity of Inspiring Australia and The Australian Society for Parasitology.