In the ocean’s abyss, deep-diving whales use echolocation to hunt in pitch dark. Emitting sounds that bounce off objects gives the whales a clear picture of their surroundings. “More often than any ...

Across just a few weeks, complex, never-before-heard melodies sung by humpback whales can spread across thousands of kilometres of oceans. These whale songs are sung by males as a way to woo a mate, ...