Why do male testes dangle outside the body in an unprotected sack?
For such an important part of the survival of the species, @rowhoop is baffled by this evolutionary choice.
So on the #podcast we explore the enduring mystery of the scrotum – and how some mammals don’t have them at all.
Hear the full story on The world, the universe and us, a news podcast for the insatiably curious, hosted by Rowan Hooper and Penny Sarchet.
Learn more: https://podfollow.com/the-world-the-universe-and-us
#EvolutionFacts, #WeirdBiology, #HumanEvolution, #SciencePodcast, #Science, #ScienceFacts, #NewScientist, #Podcast,
Why do male testes dangle outside the body in an unprotected sack?
