Skip to main content
U.S. flag

An official website of the United States government

Using Environmental DNA to detect foothill yellow-legged frogs

Detailed Description

USGS technician filters water samples for environmental DNA (eDNA) to monitor for the presence of foothill yellow-legged frogs (Rana boylii) at historically occupied sites. Photo courtesy B. McCreary. 


Free to use with credit to Brome McCreary; Ask permission before altering photo.