San Diego – October 06, 2026 -- San Diego Zoo Wildlife Alliance has established a third reintroduced population of endangered Pacific pocket mice at North San Mateo, a training area within Marine Corps Base Camp Pendleton.

The milestone marks 20 years since the Alliance launched its Pacific Pocket Mouse Conservation Program in 2006. Since then, the organization has released more than 500 Pacific pocket mice into new and existing populations across the species' native range in Southern California.