Bats find their way around at night by emitting noise and listening to the way it bounces back to them. But since bats often congregate in large groups, how do they keep from losing their own signal in the din? A new study found that they do this much in the same way children do: by trying to screech the loudest.
In a world’s first, researchers from the US and UK have created an impression of a submerged human as recorded by a dolphin’s echolocation.
To do it, a team led by Jack Kassewitz of SpeakDolphin.com used an imaging system known as a Cymascope. The system, developed by John Stuart Reid (who also assisted with the…
Most of us consider vision and hearing to be two separate senses. But dolphins use sound to see, emitting clicks, squawks and whistles to reveal hidden objects. This is called echolocation, and a new map of dolphin brain circuitry hints at how the animals do it.
Daniel Kish, who lost his eyesight to cancer, is now an expert in echolocation - the technique that a bat uses to navigate at night. This is why he is sometimes known as the real life Batman - although Daredevil would be more accurate. Using these skills Daniel is able to enjoy independence and freedom from many of…
There’s plenty of precedent for echolocation in the natural world: bats can navigate based on the echo of their chirrups; and blind humans, at least anecdotally, sometimes develop remarkable sound-based spatial skills. But using sound to accurately map a space in three dimensions? That’s new.
You know what I'm talking about; that accelerating high-pitched beep bleeding into a squeal as the projectile locks-on and closes on your position. It's the "Oh shit I'm dead" sound for fighter pilots and whatever "oh shit I'm dead" translates into for bugs as well, apparently.
Radar is wonderful, sure, but militaries didn't always have the benefit of radar to pinpoint enemy locations. Before that, there was sonar. Underwater is one thing, though. On land, you needed big victrola-like contraptions that looked uncomfortable as all hell.
Daniel Kish lost his eyesight when he was 13 months old. For most of his youth, he functioned fine without a walking stick. He mountain bikes. He camps alone. He moves through cities handily. All thanks to advanced echolocation abilities.