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Mountain Lion Surveying its Territory

Photo: A mountain lion watches its territory from a rock
Mountain lions do not like to share their territory and are constantly on the lookout for invaders.
Photograph by Jim & Jamie Dutcher

Multimedia

Big Cats Features

Photo: Mountain lion

Photo of the Day: Serious Cat

See a photo of a tough-looking mountain lion near the Peco River in the southwestern United States.

Photo: Peninsular bighorn sheep

Wild Crusade

Find out whether California can balance the demands of a growing population with its amazing biodiversity in this feature.

Photo: Maneless lion

Maneless in Tsavo

Get intimate with Kenya's famous lions in this multimedia feature.

Photo: Jaguar

Phantom of the Night

South America's jaguars are among the region's most successful predators. Learn their secrets in this multimedia feature.

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Dog Whisperer DVDs & Books

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Six Degrees Book and DVD

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Get an eye-opening warning of the dangers of climate change, one degree at a time.