Enjoy a free trial of National Geographic right here: https://ngmdomsubs.nationalgeographic.com/servlet/OrdersGateway?cds_mag_code=NG9&cds_page_id= ➡ Subscribe: http://bit.ly/NatGeoSubscribe And check out more National Geographic series and specials here: ➡ Disney Plus: https://on.natgeo.com/3q6on5p ➡ Hulu: https://on.natgeo.com/3Qor0Ko ➡ NGTV app: https://www.nationalgeographic.com/tv/ ➡ ABC app: https://abc.com/ #NationalGeographic 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 TikTok: http://www.tiktok.com/@natgeo Tenor: http://on.natgeo.com/31b3Koc Paid content for https://www.youtube.com/channel/UCyKqxNOVX6e1kBKB23g8r6g. Facing the invasive Atlantic blue crab National Geographic null