Home / Environment / Hope for San Francisco Garter Snake: First Wild Release
Hope for San Francisco Garter Snake: First Wild Release
15 Nov
Summary
- Sixty-two endangered snakes were released into San Mateo County.
- This marks the first captive-bred release of the species.
- Fewer than a few thousand snakes are estimated to remain in the wild.
For the first time, endangered San Francisco garter snakes have been released into the wild, marking a pivotal moment for California's conservation efforts. Sixty-two young snakes, born at the San Francisco Zoo, were freed in San Mateo County earlier this autumn, a region where the species naturally occurs. This release is a significant turning point for a reptile listed as endangered since 1967.
Biologists view this successful reintroduction as a crucial step toward establishing self-sustaining populations. The project involved extensive research, habitat restoration, and collaboration among multiple agencies. Head-starting, a process of rearing young animals in captivity for protection during their most vulnerable stages, was employed. Snakes were released into areas needing a stronger genetic pool for breeding.
Researchers estimate only a few thousand of these harmless snakes remain in the wild, facing threats from drought, invasive species, disease, and poaching. The species is exclusively found in San Mateo and a small part of Santa Cruz County. Another generation of over 130 snakes born at the zoo in 2026 is slated for release in 2027.
Monitoring of the released snakes will inform future conservation strategies and aid in the recovery of other imperiled reptile species. The exact release locations have been kept confidential to protect the snakes from illegal collection and other dangers.
