What do bats, dolphins, shrews, and whales have in common? Echolocation! Echolocation is the ability to use sound to navigate. Many animals, and even some humans, are able to use sounds in order to ...

Deep into the Panamanian night, the forest hums with sound. Chirping insects form a steady backdrop, rain softly trickles from leaves. Somewhere above a stream, frogs call into the darkness. But I am ...

Every spring, billions of migratory songbirds in Europe fly north to their breeding grounds. Most of these birds fly at night when no predators are around — or so the experts thought. But researchers ...