Two invasive species — the brown tree snake and the American bullfrog — cost the world more than $16 billion between 1986 and 2020, according to a study.

Get to know the American bullfrog, the giant amphibian with the bull-like bellow, and one of North America’s most widespread frog species. ... South America, and Asia. Behavior.

WOODRUFF: Like, (imitating American bullfrog) kind of noise that they do. Once one starts, another one starts, and then it becomes this, like, big, deafening chorus.

Almost everybody knows the bullfrog. With an average weight of one pound and a body length of six inches, it’s the largest frog in North America and six times more massive than the common green ...

The science and technology publication American Scientist wrote about the "record-breaking, 10-inch-long whopper of a bullfrog tadpole" in 2018, noting that it was discovered by a "a crew of ...

Native turtles return to Yosemite after removal of more than 16,000 invasive bullfrogs As part of the study, 16,384 American bullfrogs, larvae and egg masses were removed from Yosemite National Park.

The American bullfrog is massive — "maybe the size of a grapefruit in your hand," says Woodruff. "And they will literally just feed on anything that fits into their mouth." ...

Researchers at the University of São Paulo (USP) and the State University of Campinas (UNICAMP) have conducted the most comprehensive genetic analysis ever of the American bullfrog in Brazil, ...

Adult bullfrogs are known to eat the young of their own species, but not enough to be a control on its own population. Bullfrogs lay between 8,000-120,000 eggs, but typically an average of 20,000 ...