National Geographic Society

  • Connect:

Mountain Lion vs. Bighorn

Kali, a young adult female mountain lion, checks out her environment with her keen, predatorial vision.

Check your local listings.

Casey is on a mission to discover what it will take for America's bighorn sheep to reclaim a home on the range while their population grows under the threatening shadow of the mountain lion. Immersing himself in the world of the bighorn, Casey works to collar pregnant bighorns to track the mother when she gives birth. Once a newborn arrives, it's a race against time and predators to collar the lamb in order to monitor the population for years to come. Can he reach them before it's too late?