American bullfrog DNA has turned up not far from the only known habitat of Pithecopus rusticus — a small, critically endangered tree frog that lives in Brazil. These neon green, orange and black frogs ...

American bullfrogs, which were once confined to much of eastern North America, have exploded around the world with dire consequences for native species. Now researchers say they may have found a way ...

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 ...

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 ...

Thanks to Americans developing a taste for frog legs, the American bullfrog has become both a native and invasive species in its native country. Vox reported on the rampant American bullfrog problem, ...

The turquoise frog in Victor Berthelsdorf’s pond may look pretty, but for local turtles, bugs and other animals, it is anything but. Berthelsdorf first spotted the brilliantly colored American ...

The call of American bullfrogs was deafening when scientists from UC Davis first began researching the impact of invasive bullfrogs on native northwestern pond turtles at Yosemite National Park. “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 ...

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 it ...

Add Yahoo as a preferred source to see more of our stories on Google. A "constellation of eyes" welcomed Sidney Woodruff the first time she went nighttime frog spotting at Yosemite National Park. Her ...

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 ...