In Yellowstone National Park, gray wolves — reintroduced in 1995 — compete with grizzly bears for resources. Amid this clash of predators, not only do fewer elk calves survive to adulthood ... but grizzlies and wolves target each other's young as prey. ➡ 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 Grizzly Bears vs. Wolves in Yellowstone | National Geographic https://youtu.be/GeF25GJleA8 National Geographic https://www.youtube.com/natgeo