Researchers have discovered seven new species of tree frogs that make otherworldly calls in the rainforests of Madagascar. Their strange, high-pitched whistling calls sound more like sound effects ...

These tiny frogs have an enormous voice for their size, and the recent warm evenings have been filled with their lovely chorus.

Springtime in the Bay Area brings with it lush green landscapes, vibrant wildflowers and buds breaking open on trees. And in some places, the soundtrack to all that visual beauty is the chorusing of ...

With a body the color of dead leaves and a black “mask” extending behind the eyes, the wood frog is unmistakable if you can actually find one. Credit: PHOTO BY BILL DANIELSON During a recent lecture ...