Watch our ‘Math of Mustangs: Fertility Control Stories’ webinar

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This Return to Freedom webinar was held on Aug. 12, 2026. It featured wild horse Kayla Grams of The Science and Conservation Center.

About the webinar

Grams helps us delve into the story behind fertility control in zoo animals, wild horses and burros, and other wildlife. Return to Freedom’s Informed Advocacy Webinar Series covers information needed to make good change for America’s wild horses and burros.

About the speaker

Speaker Kayla Grams has handled all manner of wildlife in the field and in conservation settings.  As the senior biologist at The Science and Conservation Center in Montana, she has also trained hundreds of people in preparing for and implementing a wild horse fertility control program, and has run the lab and manufactured the PZP immunocontraceptive vaccine, ZonaStat-H.

Take action for wild horses

Support safe, proven and humane fertility control that can end wild horse and burro roundups: Send a letter to Congress.

Donate to the Wild Horse Defense Fund, which fuels our Capitol Hill lobbying, grassroots advocacy and selective litigation — and makes webinars like this possible

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