The Atlantic Coast leopard frog, first identified in an industrial section of Staten Island in 2012, is now on the state’s ...

Invasive bullfrogs may also be spreading diseases. A study published in 2018 linked the arrival of bullfrogs in the West with the spread of a pathogen called chytrid fungus. While the pathogen ...

The American bullfrog is three-times the size of a northern leopard frog and can eat the smaller frogs with ease.

Once abundant across all of North America, the northern leopard frog has been on the Washington endangered species list since 1999. Climate change and the arrival of the invasive American bullfrog ...

The American bullfrog and the leopard frog were once the only options for frog keepers, but now there is a far wider variety of frogs to choose from. With the success of captive breeding programs ...

The Oregon Zoo's northern leopard frog recovery program reared nearly 100 frogs that now live in Washington's Columbia National Wildlife Refuge.

What these summer frogs have in common is that they avoid the temporary, seasonal pools favored by the spring breeders. In fact, two of the big players – the Green Frog and the American Bullfrog – ...

In other words, adult turtles that can’t fit in the frog’s mouth. An American bullfrog tadpole (left) is bigger than the young native northwestern pond turtle on the right of this photo.