Skip to main content
U.S. flag

An official website of the United States government

USGS Scientist Holding Leopard and Boreal Chorus Frog Larvae

Detailed Description

USGS scientists collected amphibians as part of an effort to study if historic oil and gas production in the Williston Basin has affected amphibians in the Prairie Pothole Region. This photograph shows a larval leopard frog (bottom) and a larval boreal chorus frog (top) that are two of the amphibian grazers collected from a wetland near Lostwood National Wildlife Refuge, North Dakota.


Public Domain.

Used With Permission