Invasive Bullfrog from 1926 Arizona Introduction Now Preys on Mexico's Northern Whipsnake

A century after Arizona introduced bullfrogs as a game species, the invasive amphibian is now documented preying on the northern whipsnake in northern Mexico, threatening its population. Scientists confirmed the predation in a wildlife refuge, adding to known impacts of this invasive species. The finding underscores the long-term ecological consequences of historical species introductions.