First there was the invasion of the American crayfish, and now the American bullfrog may be providing a new threat to Dutch native species. Traces of the bullfrog, an invasive species, have been found ...

“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 ...

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 ...

Noord-Brabant is on high alert for the American bullfrog after a nature club discovered one of these invasive exotics in a small pond south of Valkenswaard. “The bullfrog is a plague for the entire ...