Featured Research

from universities, journals, and other organizations

Insect Research May Produce Better Hearing Aids

Date:
September 1, 1998
Source:
University Of Toronto
Summary:
University of Toronto research into an insect that thrives in rain forests, may help in the development of better hearing aids, microphones and music speakers.

U of T research involving an insect that thrives in rain forests may help in the development of better hearing aids, microphones and music speakers.

A diverse group of insects known as katydids possess extremely complicated ear structures -- located on their two front knees -- and can detect sound frequencies that other animals, including humans, cannot. Professor Glenn Morris of zoology, who has been studying katydids for 30 years, believes their auditory systems could serve as a model for smaller, improved human hearing aids and other acoustic devices.

Morris studies the different notes and frequencies produced by the insect. He then tries to relate these to the shape of the katydids' ear. "Although katydids are an extremely diverse insect group, their ears have evolved to listen to sounds made by their own particular species," he says. Male katydids have a diverse range of frequencies while females are usually mute. "Some frequencies are so amazingly high that not only are people unable to hear them but the insects themselves can't either, unless they're practically sitting side by side." These high frequencies may enable the insects to avoid predators such as bats who might eavesdrop on a male as he sings for a mate, he notes.

Morris, who has studied the katydids of Ecuador, Columbia, Costa Rica, Venezuela and Panama, is currently making working models of the insects' ears to see how they function. The Natural Sciences and Engineering Research Council is funding his research.


Story Source:

The above story is based on materials provided by University Of Toronto. Note: Materials may be edited for content and length.


Cite This Page:

University Of Toronto. "Insect Research May Produce Better Hearing Aids." ScienceDaily. ScienceDaily, 1 September 1998. <www.sciencedaily.com/releases/1998/08/980831210659.htm>.
University Of Toronto. (1998, September 1). Insect Research May Produce Better Hearing Aids. ScienceDaily. Retrieved August 20, 2014 from www.sciencedaily.com/releases/1998/08/980831210659.htm
University Of Toronto. "Insect Research May Produce Better Hearing Aids." ScienceDaily. www.sciencedaily.com/releases/1998/08/980831210659.htm (accessed August 20, 2014).

Share This




More Health & Medicine News

Wednesday, August 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola-Hit Sierra Leone's Freetown a City on Edge

Ebola-Hit Sierra Leone's Freetown a City on Edge

AFP (Aug. 19, 2014) Residents of Sierra Leone's capital voice their fears as the Ebola virus sweeps through west Africa. Duration: 00:56 Video provided by AFP
Powered by NewsLook.com
101-Year-Old Working Man Has All The Advice You Need

101-Year-Old Working Man Has All The Advice You Need

Newsy (Aug. 19, 2014) Herman Goldman has worked at the same lighting store for almost 75 years. Find out his secrets to a happy, productive life. Video provided by Newsy
Powered by NewsLook.com
Researcher Testing on-Field Concussion Scanners

Researcher Testing on-Field Concussion Scanners

AP (Aug. 19, 2014) Four Texas high school football programs are trying out an experimental system designed to diagnose concussions on the field. The technology is in response to growing concern over head trauma in America's most watched sport. (Aug. 19) Video provided by AP
Powered by NewsLook.com
Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Kids' Drawings At Age 4 Linked To Intelligence At Age 14

Newsy (Aug. 19, 2014) A study by King's College London says there's a link between how well kids draw at age 4 and how intelligent they are later in life. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins