In 1926, Arizona introduced bullfrogs for food and sport; a century later, the invaders were threatening the northern Mexican gartersnake in Arizona

Arizona introduced American bullfrogs nearly a century ago for food and hunting. Today, the invasive predators threaten ...

Arizona removed invasive bullfrogs and rebuilt native frog habitat; Chiricahua leopard frog breeding sites grew from 7 in 2013 to 19 by 2019

Efforts to revive the Chiricahua leopard frog habitat in Southeastern Arizona encountered severe obstacles. The introduction of invasive American bullfrogs disrupted local frog populations ...