Do human embryos have gills and does it matter? | John Spicer | TEDxPlymouthUniversity

This talk was given at a local TEDx event, produced independently of the TED Conferences. Professor John Spicer - In his talk Professor Spicer tells us the interesting story from the history of biology of the theory of recapitulation. The curious idea that humans, at one stage in their life, had gills. John tells us why this story is essential to the story of science itself. Professor John Spicer - A professor of Marine Biology at the University of Plymouth. He is a subject leader for the Marine Biology group, and Deputy Head of the School of Marine Sciences and Engineering. Published in over 100 papers and international journals and author of “Biodiversity: A beginners guide“. About TEDx, x = independently organized event In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)