In a rapidly changing world, RMBL sustains our quality of life by accelerating discoveries about the ecosystems that replenish the world’s air, water, and food supplies.
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Announcing Fat Marmot Week 2026!
Every summer, yellow-bellied marmots bulk up to survive months of hibernation. Now it’s your turn to celebrate their remarkable seasonal transformation. Hosted by the RMBL Marmot Project — one of the world’s longest-running studies of wild mammals — Fat Marmot Week combines real science with a little friendly competition. Meet this year’s contestants beginning July 27, and cast your vote starting Aug. 24.
Your gift enables RMBL to provide access to the critical infrastructure, resources, and long-term datasets that make our science, education, and community programs possible. Each year, scientists from around the world rely on RMBL’s support to conduct their research on marmot populations, pollinators, the impact of climate change on mountain ecosystems, and more. Your gift will go directly to advancing long-term research.
