Our bodies are astonishing in all their beautiful, biological complexity – but do you ever wonder if this is as far as the human form can develop? Millions of years of evolution have created a four-limbed, bipedal mammal with opposable thumbs and a powerful, versatile brain. But have we stopped evolving? Are we still subject to natural selection in the unnatural, man-made world we’ve created? And which genetic mutations will thrive, ensuring the continued survival of our species? Evolutionary biologist Dr. Nicholas Longrich joins Anna Machin to predict how and why humans will evolve in the future… and whether we will eventually transform into an entirely new species. Every Monday and Thursday WHY? takes you on a wild adventure to the edge of knowledge. Follow on your favourite app so you never miss an episode. WHY? is written and presented by Anna Machin. Audio production by Jade Bailey. Artwork by James Parrett. Music by DJ Food. Exec Producer: Jacob Jarvis. Lead Producer: Anne-Marie Luff. Group Editor: Andrew Harrison.  WHY? is a Podmasters Production. Instagram | Twitter Learn more about your ad choices. Visit podcastchoices.com/adchoices