Hercules and Leo Archives | Nonhuman Rights Project

May 27, 2025 Spencer Lo

Reflections on the first habeas hearing on behalf of a nonhuman animal

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A photo of chimpanzee Leo lying on his side and sleeping in a basement lab at Stony Brook University

April 20, 2025 Elizabeth Stein

Reflections on the first habeas order on behalf of a nonhuman animal

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Hercules and Leo in their housing structure at Project Chimps.

January 25, 2022 Courtney Fern

Hopeful Update on Hercules and Leo

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Hercules and Leo in their housing structure at Project Chimps.

March 22, 2021 Courtney Fern

Advocating for True Sanctuary for Hercules and Leo

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Watercolor illustration of two chimpanzees.

October 14, 2020 Nonhuman Rights

Nonhuman Rights Project Calling for Changes at Project Chimps

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A photo of chimpanzee Hercules in the sun at Project Chimps sanctuary

March 21, 2020 Courtney Fern

Celebrating two years of sanctuary for Hercules and Leo

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A depressed male chimpanzee lays his head on his arm. In "How Animals Grieve," Barbara J. King writes about how chimpanzees and other nonhuman animals' emotional and social lives.

July 13, 2019 Courtney Fern

The Need for Chimpanzee Rights

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Movie poster, Unlocking the Cage.

February 20, 2017 Lisa Rainwater

Do You Have Your Popcorn?

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August 20, 2015 Michael Mountain

Notice of Appeal Filed in Hercules and Leo Case

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August 4, 2015 Steven Wise

That’s One Small Step for a Judge, One Giant Leap for the Nonhuman Rights Project

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June 19, 2015 Steven Wise

Steven M. Wise on Interview with Stony Brook Researcher

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June 10, 2015 Lauren Choplin

Transcript of the Hearing re. Hercules and Leo at the Supreme Court

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