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Horseshoe Crabs Mate in Massive Beach "Orgy" | National Geographic

Horseshoe crabs have been on Earth an estimated 450 million years, pre-dating the dinosaurs by some 200 million years. They are one of the few living creatures with blue blood, which is used by the pharmaceutical industry for testing drugs. Horseshoe crabs live in the ocean year-round, but they make one annual visit to the shoreline to lay eggs in sandy, wet beaches. In the United States, the highest concentration of egg laying is along the Delaware Bay. ➡ 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 Learn more about this annual mating event: http://news.nationalgeographic.com/ne... PRODUCER/VIDEOGRAPHER: Wynette Yao EDITOR: Nick Lunn SENIOR PRODUCER: Jeff Hertrick PHOTOS: http://www.horseshoecrabs.org ADDITIONAL VIDEO: Charles River Laboratories Horseshoe Crabs Mate in Massive Beach "Orgy" | National Geographic    • Horseshoe Crabs Mate in Massive Beach...   National Geographic    / natgeo