On Toads and Toxins

Our field technicians often come across various species and life stages of frogs out in the field. The most common species we see are large American bullfrogs, Read More…

Frogs, toads, and hungry trout

In the late 1800s, most high Sierra Nevada lakes were teeming with frogs and toads, but contained virtually no fish. Over the past century, however, the number Read More…

Frog legs

It looks a bit like a fish with legs, but this giant tadpole is well on its way to becoming a full-grown American bullfrog (Rana catesbeiana). Bullfrog Read More…

The real toad

Amphibians are a very diverse group of vertebrates that live on every continent except Antarctica. Since the mid-1970s drastic population declines of many amphibian species have been Read More…