National Geographic Explorer Dr. Erika Woolsey has traveled around the world to study one of our planet's most diverse habitats, coral reefs. Join our host Lizzie Daly to hear her stories, from witnessing annual mass coral spawnings to diving with manta rays. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Follow Lizzie Daly: YouTube: https://www.youtube.com/channel/UC20DGpTHgqDlgctp6jDkmZg Instagram: https://www.instagram.com/lizziedalywild/ Facebook: https://www.facebook.com/LizzieDalyWildlife Twitter: https://twitter.com/LizzieRDaly Follow Dr. Erika Woolsey: Instagram: https://www.instagram.com/erikawoolseyphd/ Facebook: https://www.facebook.com/erika.woolsey Twitter: https://twitter.com/ErikaWoolseyPhD Coral Reef Ocean Explorer - Meet the Expert | National Geographic https://www.youtube.com/watch?v=gS7inAfYH9I National Geographic null