To help manage the invasive American bullfrog population, the Nisqually National Wildlife Refuge Complex brings in a ...

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 ...

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 ...

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 ...

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 ...

Bullfrogs are fascinating amphibians with an impressive repertoire of sounds. Their name comes from the male’s deep, resonant “mooing” call, which sounds a lot like a cow or bull. However, the weird ...

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 ...