The baritone call of the bullfrog is so deep and resonant, it resembles the mooing of a cow, hence its name. Only males emit this trademark "jug-o-rum" bellow, and their choruses can be heard during ...

Bullfrog history North American bullfrogs are found near lakes, ponds, rivers or bogs. Warm, still, shallow waters with a lot of aquatic vegetation favor bullfrogs by providing suitable habitats for ...

A "constellation of eyes" welcomed Sidney Woodruff the first time she went nighttime frog spotting at Yosemite National Park. Her headlamp lit up thousands of eyes that belonged to the invasive ...