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Keeping Mountain Lion Kittens Safer

An early snow had painted northwest Wyoming completely white, making it beautiful, but treacherous. Navigating the slippery roads of the backcountry, we paused to look at footprints of a mountain lion we call F61. She had crossed the road and ...

Caught in the Middle: The Subordinate Mountain Lion

In a new paper just published in PeerJ, we found that mountain lions are often losers—and subordinate to at least one other apex carnivore in 47.5% of their 22,735,268 square kilometer range across North and South America....

Frozen Food: Winter Woes for Cougars

It was dark, and cold. Under cover of night, F61, an adult female mountain lion currently followed by Panthera’s Teton Cougar Project, padded softly back to her kill. Drew Rush, on assignment for National Geographic’s article “Ghost Cats” ...

Rare Video Footage Shows the Dynamics of Cougar Courtship

How cougars find each other in a vast landscape of mountains, raging water, thick forests, and rocky bluffs is one of life’s great mysteries for those of us who study mountain lions. I’ve spent many long hours contemplating ...

Fecundity and Cougar Kittens

F51, an adult female mountain lion currently followed by Panthera’s Teton Cougar Project, has given birth to three litters in three years, which as far as we know, is something of an anomaly. F51 immigrated into our study area ...