Vestigial features and atavistic traits are all evidence of our past.  They are glimpses into a species distant past. We have nature and evolution by natural selection to thank for it. But nature’s not perfect.  It makes mistakes.   Evolution Talk is also a book! You can find links to Amazon, Barnes & Noble and others on the front page of EvolutionTalk.com, or call your local bookstore and ask them to order a copy.   Music in this Episode Epiphany by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com Floating by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com Chimera by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com Curious Process by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com Tentative Cloud by Podington Bear, License (CC BY 3.0): Artist website: soundofpicture.com