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 ...
The group that they found lives in the rainforest along fast-flowing streams in the most mountainous regions of Madagascar – a loud background that may explain why the frogs call at such high pitches.
Tourists watching lemurs in Madagascar (Joan de la Malla) Scientists documented a type of high-pitched sound made by the frogs called “advertisement calls”, which conveys information about the ...