HOME >> BIOLOGY >> NEWS
To elude bats, a moth keeps its hearing in tune

It has been known for over 50 years that moths can hear the ultrasonic hunting calls of their nocturnal predator, the bat. Moth ears are among the simplest in the insect worldthey have only two or four vibration-sensitive neurons attached to a small eardrum. Previously, it was thought that these ears were only partially sensitive to the sound frequencies commonly used by bats, and it would seem likely that by using high ultrasound, bats would make their hunting calls inaudible to moths. However, as now reported by James Windmill and colleagues at the University of Bristol (UK), moths are not as deaf as they had previously been supposed to be. The findings appear in the December 19th issue of the journal Current Biology, published by Cell Press.

The new work shows that the ear of the yellow underwing moth changes its frequency (pitch) sensitivity in response to sound. As a bat gets closer to a moth, both the loudness and frequency of sound increase. Surprisingly, the sensitivity of the moths ear to the bats calls also increases, as the moth ear dynamically becomes more sensitive to the frequencies that many bats use when attacking moths. Furthermore, the ear remains tuned up in this way for several minutes after the sound stops, ready in case there is another attack.

To date, this phenomenon has apparently not been reported for insects, or in fact for any other hearing system in the animal kingdom. This finding changes our understanding of the co-evolution of bats and mothsfor example, as the moth cleverly tunes its ear to enhance its detection of bats, do some bats in turn modify their calls to avoid detection by moths" The authors point out that, in view of the vast diversity of bat calls, this is to be expected.


'"/>

Contact: Erin Doonan
edoonan@cell.com
617-397-2802
Cell Press
18-Dec-2006


Page: 1

Related biology news :

1. Prenatal stress keeps infants, toddlers up at night, study says
2. Modified herpes virus keeps arteries free-flowing following procedures
3. A simple feedback resistor switch keeps latent HIV from awakening
4. Scientists identify synthetic compound that keeps stem cells young
5. Nerve cell software keeps track of brain change
6. How the brain keeps emotions at bay
7. How the adrenal clock keeps the body in synch
8. Unusual mechanism keeps repair protein accurate
9. Friend protein keeps nerve signals in check
10. Chewing up a key regulator of fat synthesis keeps mice lean despite a high-fat diet
11. Septum keeps neurons in synch, can reduce epileptic seizures by 90 percent

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/1/2020)... ... May 01, 2020 , ... More than 600 people undergo genetic counseling ... Program, which is led by two genetic counselors. , My Gene Counsel , ... teaming up with UConn’s High Rick Program to ensure that UConn’s patients who have ...
(Date:4/28/2020)... SEATTLE, and FT. LAUDERDALE, Fla. (PRWEB) , ... ... ... announces its official launch. The first-of-its-kind category-defining service was started by three teenagers ... to make a change in the world during the time of great need ...
(Date:4/22/2020)... ... April 20, 2020 , ... RCH Solutions (RCH ), a ... sizes, announces the hiring of Michael Wlodarczyk as Director of Sales and Business Development. ... and grow the company’s already strong presence across the Northeast. , “We continue to ...
Breaking Biology News(10 mins):
(Date:5/21/2020)... Prairie, MN (PRWEB) , ... May 19, 2020 , ... ... to help patients get dental implants and bone grafting through PIEZOSURGERY® technology. ... tissues. This is often used to prepare a patient for dental implants, especially when ...
(Date:5/15/2020)... ... ... This new service offers clients a way to speak with Subject Matter ... need arises. Lachman’s OnCall SMEs have extensive knowledge of a wide range of scientific, ... SMEs are available normal business hours Monday through Friday from 9:00 am – 5:00 ...
(Date:5/14/2020)... ... 13, 2020 , ... Early stages of drug discovery often ... information on the drug’s mechanism of action (MOA). Gene expression profiling technologies like ... activity of molecular pathways. This information can complement phenotypic readouts and can be ...
(Date:5/1/2020)... (PRWEB) , ... April 30, 2020 , ... ... were announced today, honoring the businesses, policies, projects, and concepts that are actively ... revolutionary bioprinter for living cells, which has taken out the top prize in ...
Breaking Biology Technology:
Cached News: