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 July 31, 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 July 31, 2014).

Share This




More Health & Medicine News

Thursday, July 31, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Health Insurers' Profits Slide

Health Insurers' Profits Slide

Reuters - Business Video Online (July 30, 2014) Obamacare-related costs were said to be behind the profit plunge at Wellpoint and Humana, but Wellpoint sees the new exchanges boosting its earnings for the full year. Fred Katayama reports. Video provided by Reuters
Powered by NewsLook.com
Concern Grows Over Worsening Ebola Crisis

Concern Grows Over Worsening Ebola Crisis

AFP (July 30, 2014) Pan-African airline ASKY has suspended all flights to and from the capitals of Liberia and Sierra Leone amid the worsening Ebola health crisis, which has so far caused 672 deaths in Guinea, Liberia and Sierra Leone. Duration: 00:43 Video provided by AFP
Powered by NewsLook.com
At Least 20 Chikungunya Cases in New Jersey

At Least 20 Chikungunya Cases in New Jersey

AP (July 30, 2014) At least 20 New Jersey residents have tested positive for chikungunya, a mosquito-borne virus that has spread through the Caribbean. (July 30) Video provided by AP
Powered by NewsLook.com
Xtreme Eating: Your Daily Caloric Intake All On One Plate

Xtreme Eating: Your Daily Caloric Intake All On One Plate

Newsy (July 30, 2014) The Center for Science in the Public Interest released its 2014 list of single meals with whopping calorie counts. 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