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Rarest US Snake Hatches in Historic Breeding Program
7 Oct
Summary
- First litters born for Project Obscurus, a rare rattlesnake recovery effort.
- Six neonates represent a crucial lifeline for a threatened species.
- Young snakes may be released in Arizona or New Mexico.
The Los Angeles Zoo has achieved a significant milestone with the birth of six New Mexico ridge-nosed rattlesnakes, the first neonates born under Project Obscurus. This international recovery program is dedicated to conserving the United States' rarest rattlesnake, classified as Threatened by the US Fish and Wildlife Service. The births occurred on August 18 and August 28, 2026, providing a critical lifeline for the species.
These young snakes represent a tangible success for the collaborative, science-based approach of Project Obscurus. The program, formalized in 2024 and coordinated by The Rattlesnake Conservancy, builds upon decades of research. Partner institutions, including the Arizona-Sonora Desert Museum and San Antonio Zoo, work alongside various agencies and researchers.
The New Mexico ridge-nosed rattlesnake, a shy pit viper known for its upturned snout, is found in limited montane habitats in Arizona, New Mexico, and parts of Mexico. Its high endemism makes it particularly vulnerable to population decline.
The six neonates will be cared for behind the scenes at the Los Angeles Zoo. Once mature, they and their future offspring will be considered for release into wild populations in Arizona or New Mexico to bolster genetic diversity.
