Moths have thick for to stop bats hearing them fly, scientist finds

Moths have thick for to stop bats hearing them fly, scientist finds

Moths have evolved thick 'stealth coats' to stop hungry bats from hearing them fly, one scientist has claimed.

Moths are a mainstay food source for bats which use biological sonar to hunt their prey.

While some moths have evolved ears, many types of moths remain deaf.

Thomas Neil from Bristol University found the insects have developed what he calls a 'stealth coating' that serves as an acoustic cover.

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Moths (pictured) have evolved thick 'stealth coats' to stop hungry bats from hearing them fly, one scientist has claimed

Moths (pictured) have evolved thick 'stealth coats' to stop hungry bats from hearing them fly, one scientist has claimed

Dr. Neil says they have evolved passive defenses over millions of years to resist their primary predators.

His research has focused on how to improve a thorax and wing joints audible they are to bats.

'Thoracic provides substantial acoustic stealth at all ecologically relevant ultrasonic frequencies,' said Dr Neil.

'The thorax acts as a lightweight porous sound absorber, facilitating acoustic camouflage and offering a significant survival advantage.'

Removing the fur from the moth's thorax has increased its detection risk by as much as 38 per cent.

Neil says that the acts as a 'stealth coating' which increases their chances of survival against bats. The research found that the thick, dense for absorbs the sound energy

Neil says that the acts as a 'stealth coating' which increases their chances of survival against bats. The research found that the thick, dense for absorbs the sound energy

Dr. Neil used acoustic tomography to quantify the echo strength of two deaf moth species that are subject to bat predation and two butterfly species that are not.

Dr. Neil's research team found that the thoracic acoustic wave for the first time was not covered in butterflies.

Furs, 'said Dr Neil Said.

The thorax for the moths was able to absorb up to 85 per cent of the impinging sound energy.

'The maximum absorption we found in butterflies was just 20 per cent.'

Dr. Neil's research could contribute to the development of biomimetic materials for ultrathin sound absorbers and other noise-control devices.

Dr. Neil wants to describe his work during the Acoustical Society of America's 176th Meeting, held in conjunction with the Canadian Acoustical Association's 2018 Acoustics Week in Victoria, Canada, this week.

HOW DO YOU STOP MOTHS FROM INFESTING YOUR HOME?

Moth infestations based on 20 years of experience.

The top tips:

– Check for moths in the spaces, folds and behind labels of clothing

– Keep your items in the moths reaching them

– Take out items from the wardrobe and give them a good shake at least once a month to disturb the moths

– Failing that, declutter your wardrobes of any clothes you do not wear regularly

– Moths hide in dark and hidden areas, so vacuum every nook and cranny, including inside wardrobes, when you clean the home

– Avoid buying second-hand furniture, clothes and upholstery are they can contain moths or their larvae

– Moths like warm spaces: Turn off the radiators in your home once it gets hot in summer and open all the windows regularly to allow air to circulate

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