In 1898, American bullfrogs were imported to California for frog legs; the predators later spread across the West, eating native frogs, fish, snakes, birds and small mammals

In the late 19th century, American bullfrogs were brought to California for a seemingly straightforward purpose: to supply the market for frog legs. In Yosemite National Park, conservationists eventually spent years removing them from the landscape, finally achieving eradication from Yosemite Valley in 2019.

Get breaking news anytime, anywhere. Download the TOI app now!