“One reason American bullfrogs are among the top worst globally introduced pests is because they eat everything — anything that fits into their mouth,” said senior author Brian Todd, a UC Davis ...

Some success is being seen in the second month of what could be a years-long effort to eradicate invasive red-eared slider turtles and bullfrogs from the Cache Creek Nature Preserve. The effort began ...

Yosemite’s ponds used to echo with the booming calls of invasive bullfrogs, which devoured young turtles, newts, birds, and more. Now, with bullfrogs nearly gone, native sounds are returning—and so ...

Sidney Woodruff has spent multiple summers hiking six or seven miles to a remote corner of Yosemite National Park where she has camped out next to ponds and lakes. "At night," Woodruff says, "you look ...

While invasive species can cause an incredible amount of environmental damage, there is still hope for many of the native plants and animals that have been pushed out of their natural habitats, as the ...

American bullfrog populations have exploded around the world with dire consequences for native wildlife. But researchers say they may have found a way to help these species rebound. American bullfrogs ...

The U.S. Fish and Wildlife Service is thinking of adding some federal protections for a turtle found in Oregon. The western pond turtle is found in fresh water and wetlands west of the Cascades. It is ...

The call of American bullfrogs was deafening when scientists from the University of California, Davis, first began researching the impact of invasive bullfrogs on native northwestern pond turtles at ...

A "constellation of eyes" welcomed Sidney Woodruff the first time she went nighttime frog spotting at Yosemite National Park. Her headlamp lit up thousands of eyes that belonged to the invasive ...