- News Home
27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
Until recently, the Defense Advanced Research Projects Agency (DARPA) kept its plans for its $70 million portion of the...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
- About Us
ScienceShot: Flexible Ears Help Bats Tune In
16 November 2011 12:03 pm
Bats navigate by bouncing sounds off of objects (an ability known as echolocation), so perhaps it's no surprise that their ears work a lot like mini-radar dishes. Using a high-speed camera (tracking reflective landmarks on the bat's ear, as seen above) and 3D digital modeling, researchers have shown that bats bend their ears in various directions to listen for the echoes of their ultrasonic calls. Upright ears capture high-quality echoes from objects ahead, while ears bent downward and backward hear echoes from more directions but not as well. Reporting online this week in Physical Review Letters, the team suggests that bats tune their hearing to specific tasks. Bent ears are better for sweeping the area for potential prey, such as moths, or for predators like owls, while upright ears could zero in on prey when bats dive for an attack.
See more ScienceShots.