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    Puma Tracker

    Over the last 20 years animal movement data has become one of the primary tools in managing and conserving wildlife. Its helping scientists better understand the ecology of everything from albatross and bluefin tuna in the oceans to antelope and cheetahs on land. But how often does the non-scientist actually get to see and play […]

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    Capturing a Mountain Lion

    We’ve made a video of the mountain lion capture process explaining everything from looking for tracks to capturing and collaring the mountain lions themselves. If you’ve never seen redwoods glistening in the sunlight, or hound dogs picking up a fresh scent, or a mountain lion descending from over 40 feet up in a tree, then […]

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    High-Tech Collars

    Wildlife tracking devices have come a long way since the 1960’s. Back then scientists attached balloons to the backs of seals so they could follow them around the ocean by boat. Today GPS tags allow you do get dozens of locations a day on your study animals without leaving the comfort of your office (except […]

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    Habitat Fragmentation

    Habitat fragmentation is among the top threats to wildlife worldwide. Think about it. Just about everywhere you go in the world today, there are roads, houses and/or farms. For some species like coyotes, deer and raccoons, this is a great thing. But for other species like elephants, wolves and tigers it can spell doom. Here […]

57M up close

Three new puma kittens take on the world!

On Saturday, June 20, post-doc Max Allen, technician Chris Fust, and I parked in a grassy field in Wilder Ranch with one mission in mind. We were setting out to visit what we believed to be a newly established den by 25F, a female puma that lives primarily in Wilder. 25F had been present at the den […]

M36 with fawn

What’s in your fridge?

I am posting this on behalf of project post doc Max Allen, who writes: This morning I went on a walk and found 3 fresh scats from last night.  Two were from gray foxes and one was from a striped skunk, and all three were choc full of raspberry seeds. I myself had eaten my […]

56M recovering and soon ready to continue searching for a territory

The Journeys of Young Pumas, and Welcome to Puma 56M

A young male puma was captured and returned safely to the wilds yesterday by the California Department of Fish and Wildlife and San Mateo Police. As scientists studying pumas, we often receive questions about pumas when this happens. Usually the first questions are “Why does this happen?” and “Is it happening more frequently?” The short […]


51M Leaping

We hear that pumas are good climbers and jumpers, but we don’t often get to see it.  This awesome series of photos shows 51M, a ~4 year old male we originally collared in November, turning around on a tree trunk, climbing down, and then leaping to the ground.  These photos were captured by volunteer houndsman, […]