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 ...

Hiking through the dense rainforest of Madagascar, scientists heard a series of “otherworldly” sounds. The “somewhat bizarre” calls came from several “cute” creatures living near streams. They turned ...

For the past week or so there has been a little tree frog somewhere on the west side of our house. Every now and then he will make that tree frog sound, and we'll wonder where he is. Both of us have ...