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 ...

Why are frogs diverse in some parts of Africa's rainforests and less so in others? The patterns of cooling and glaciation ...

Amazing things happen in nature as spring begins. The weather changes, plants and trees begin to flourish, and animals start ...

For a quarter of a century, Panamanian golden frogs were not seen in the wild. These brightly colored little amphibians had ...