More than 16,000 American bullfrogs, larvae and egg masses were removed from Yosemite National Park over a six-year period.

The call of American bullfrogs was deafening when scientists from the University of California, Davis, first began ...

Here are the 10 most (and least) visited in 2024. When, why did the American bullfrog invade Yosemite? Native to the eastern United States, American bullfrogs were intentionally introduced to ...

Sidney Woodruff of UC Davis holds a northwestern pond turtle at their field site in Yosemite. Credit: Sidney Woodruff An American bullfrog tadpole, left, is bigger than the young native ...

After invasive American bullfrogs 'croak,' native turtles return to Yosemite, finds a new study. The call of American bullfrogs was deafening when scientists from the University of California ...