Pig frogs are named for their low grunting sound, which sounds like a pig’s “oink.” They mostly call to attract female frogs, ...

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.

If you’re not a Trekkie, those calls might sound similar ... regions – a loud background which could explain their high-pitched calls. The calls of these frogs are known as advertisement ...