Please ensure Javascript is enabled for purposes of website accessibility


The Department of Herpetology focuses on systematic and conservation biology research of amphibians and reptiles from California and Baja California. Projects involve habitat evaluation, distribution analysis, thermoregulation, alpha taxonomy, phylogenetic reconstruction, and historical biogeography.

Amphibian and Reptile Atlas of Peninsular California

The Department of Herpetology focuses on biodiversity research and is home to the Amphibian and Reptile Atlas of Peninsular California. The Atlas documents amphibians and reptiles from southern California and Baja California using both Museum collection data and observations from citizen scientists. Learn more.

Saving the California Red-legged Frog from Extinction

In San Diego County, the California red-legged frog (Rana draytonii) went extinct in the 1970s. The Nat is contributing to the recovery of the frog in both the United States and Mexico as part of a binational, collaborative effort. Learn more.

What We’re Up To

Museum scientists are taking action to restore California Red-legged Frog habitat in Baja California in response to massive declines in their population. Read more.

Seeking out the diversity of life is challenging, especially for amphibians and reptiles. Scientists have focused their attention on Baja California for nearly 200 years and the discovery of new amphibian and reptile species has become rare. Unlike super-diverse groups, like arthropods and plants, herpetologists are now approaching a complete understanding of the region’s species composition. And with this knowledge, new doors are opening. Read more.

By now, the Museum’s Atlas programs should be familiar to you. Years ago, we published the renowned San Diego County Bird Atlas, and we continue to work toward completion of the Plant Atlas and Mammal Atlas. We are proud to announce one more addition to these highly successful citizen science research projects, the Amphibian and Reptile Atlas of Peninsular California.    Read more.