New evidence that bullfrogs are to blame for deadly fungus outbreaks in western US

Animal & Marine Conservation

In the 1890s, settlers crossed the Rocky Mountains seeking new opportunities-- and bearing frogs. A new study draws a link between that introduction of American bullfrogs (Rana catesbeiana) to the western half of the United States with the spread of a fungus deadly to amphibians. The work highlights the catastrophic results of moving animals and plants to new regions.