The study found less gray matter volume in parts of male brains used to process language. It found less gray matter volume in parts of females brains used in sensory and motor processing.
The greater wax moth is capable of sensing sound frequencies of up to 300kHz – the highest recorded frequency sensitivity of any animal in the natural world.
Here's another way cool video of astronaut Chris Hadfield doing an everyday thing in zero gravity aboard the ISS. This time he's wringing out a wet washcloth.
Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.