Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

A Bug’s Life ... in a Bubble

12.08.2008
Have you ever wondered how some bugs can stay under water for so long? University of Alberta researcher Morris Flynn, and his colleagues at MIT in Massachusetts, found these insects rely on a bubble that acts as an external lung.

Hundreds of insect species live mainly underwater, but how do they breathe? University of Alberta researcher Morris Flynn did a study to find out how these species are able to remain underwater without drowning.

According to Flynn, the rough, waxy surfaces of insects and spiders are water-repellent. In some species, water-repellency is so pronounced that creatures may survive underwater for indefinite periods. This is achieved by an air bubble called a plastron that the insect traps between its body and its hairs, creating an external lung. This lung facilitates oxygen and carbon dioxide exchange with the surrounding water. “The closer together the hairs, the more pressure the bubble can withstand before collapsing,” Flynn says.

Flynn, and his colleagues at MIT in Massachusetts, found these insects cannot survive in deep waters where the pressure results in bubble rupture, nor can they survive in shallow waters where the bubble surface area is too small. “We were surprised by the fact that, in some cases, bugs may be unable to survive in shallow water. But we did discover they can safely dive as deep as 30 metres.”

... more about:
»external lung »insect »insect species »species

Flynn did this research while he was at MIT in Massachusetts. He is now continuing his work in the department of mechanical engineering at the University of Alberta.

This research is in the August 10 issue of the Journal of Fluid Mechanics.

| Newswise Science News
Further information:
http://www.ualberta.ca

Further reports about: external lung insect insect species species

More articles from Life Sciences:

nachricht Microscope measures muscle weakness
16.11.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg

nachricht Good preparation is half the digestion
16.11.2018 | Max-Planck-Institut für Stoffwechselforschung

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: UNH scientists help provide first-ever views of elusive energy explosion

Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.

Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...

Im Focus: A Chip with Blood Vessels

Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.

Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...

Im Focus: A Leap Into Quantum Technology

Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.

In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...

Im Focus: Research icebreaker Polarstern begins the Antarctic season

What does it look like below the ice shelf of the calved massive iceberg A68?

On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.

Im Focus: Penn engineers develop ultrathin, ultralight 'nanocardboard'

When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure

Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

“3rd Conference on Laser Polishing – LaP 2018” Attracts International Experts and Users

09.11.2018 | Event News

On the brain’s ability to find the right direction

06.11.2018 | Event News

European Space Talks: Weltraumschrott – eine Gefahr für die Gesellschaft?

23.10.2018 | Event News

 
Latest News

Purdue cancer identity technology makes it easier to find a tumor's 'address'

16.11.2018 | Health and Medicine

Good preparation is half the digestion

16.11.2018 | Life Sciences

Microscope measures muscle weakness

16.11.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>