Add Yahoo as a preferred source to see more of our stories on Google. Frogs are found across the U.S. in ponds, lakes, rivers, pools, and wetlands. Pig frog females tend to reach larger sizes than ...

American bullfrog DNA has turned up not far from the only known habitat of Pithecopus rusticus — a small, critically endangered tree frog that lives in Brazil. These neon green, orange and black frogs ...

Green tree frogs are some of the most commonly seen tree frogs in the world. Two primary species share the specific name “green tree frog”: the American species and the Australian species. Australian ...

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 ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Regular readers will know that I try and ...