David Ledesma is one of our 2021 Stengl-Wyer Fellows. With his advisor Dr. Melissa Kemp, he studies the responses of herpetofauna (non-avian reptiles and amphibians) to environmental changes, and the long-term responses of herpetofauna over the last 21,000 years. As part of the Stengl Wyer Endowment, the Stengl Wyer Fellows Program supports ye...