A Personal Message from Thomas D. MangelsenDiscover Tom’s heartfelt message on the importance of preserving public lands and ensuring the humane treatment of all creatures. A Call to ConserveExplore the history and ongoing challenges facing America’s wild horses and learn how you can make a difference. Join the Fight to Keep America’s Wild Horses & […]
Stories, Science, and Sprawl: A Closer Look at What’s Threatening the Greater Yellowstone Ecosystem Read the full 2024 GYE Sprawl Study👉 Download the report here  Missed the event?👉 Catch up on highlights from Mangelsen LIVE On April 8, Mangelsen Conservation hosted Mangelsen LIVE: A Night of Stories, Science, and Conservation, an unforgettable evening that […]
Whiskey’s Named After Wyoming Legends Grizzly 399, one of the most beloved and famous bears of the Greater Yellowstone Ecosystem, has long captured the hearts of wildlife enthusiasts around the world. Known for her remarkable survival instincts, successful litters, and ability to thrive near human activity, she became an icon of coexistence between people and […]
An Evening with Nature’s Champions: Thomas D. Mangelsen & Dr. Christopher Servheen Watch the recording of the event here! https://www.youtube.com/watch?v=hVuOrK2pJIM Mark your calendar—Thursday, April 17, 7pm MT ( 6pm PT / 8pm CT / 9pm ET )  Mark your calendars for Thursday, April 17, for a captivating evening dedicated to the future of wildlife […]
Last month, thousands of voices came together for the first National Park Rally, standing up for the protection of our most treasured landscapes. Now, we’re gathering again this Saturday to make our message even louder: Our national parks deserve our support, funding, and protection. I invite you to join me and fellow conservationists in a […]
War on Cougars and Grizzlies AN URGENT MESSAGE FROM THOMAS D. MANGELSEN Proposed Legislation Threatens to Decimate Mountain Lions and Grizzly Bears—TAKE ACTION NOW! Wyoming’s Rep. Mike Schmid has proposed House Bill 0286 – Mountain Lion Hunting Season Changes to the Wyoming to the Wyoming Legislature that would bring all-out war on cougars! The bill would allow […]
Grizzly 399 Commemorative 2025 Calendar for her memorial and grizzly protection Grizzly 399 has become a beacon of hope for wildlife conservation, captivating hearts with her journey. Her story raises awareness about the challenges bears face and inspires action to protect their habitats. “That awful dreaded day arrived. Jackson Hole Grizzly 399 has left us. […]
