Sidney Woodruff of UC Davis holds a northwestern pond turtle at a field site in Yosemite. (Courtesy Sidney Woodruff) The call of American bullfrogs was deafening when scientists from the University of ...

Worldwide there are about 2,700 species of frogs, but only 14 are found in Minnesota. Six are classified as true frogs, five are species of tree frogs and three are types of toads. Bullfrogs are true ...

Conservation gets complicated when a native U.S. species is appreciated in one part of the country, but despised in another. Consider, if you will, the American bullfrog. “In the Eastern U.S., where ...