Feeds

Chinese claim world's first ultrasonic frog

That crazy frog

Beginner's guide to SSL certificates

Scientists have discovered how Amolops tormotus, AKA the concave-eared torrent frog, makes itself heard above the gushing waterfalls of its habitat in east-central China: bat-style ultrasound.

The discovery, detailed in today's issue of journal Nature, makes this particular crazy frog the first non-mammal known to use ultrasonic communication. Researchers have known for several years that the males produce high-pitched, birdlike calls that extend into the ultrasonic range. Whatremained to be tested was whether the sounds were a byproduct of the frog's sound production, or were actually listened to and responded to.

The University of Illinois-UCLA team first wanted to know if the frog can hear very high frequencies. They recorded a male's call, split it into the audible components and ultrasonic components, and observed the responses of eight other males. The behavioural results showed they heard and responded.

The finding was then confirmed by measuring electrical activity in the frog's mid-brain - where sound is processed.

Since most frogs lack the concave-eared torrent frog's ear canal, the researchers say their findings bolster the idea that the canal evolved to detect high frequencies.

The work was part-funded by the US National Institute on Deafness and Other Communication Disorders. Director James F. Battey explained the apparently tenuous link: "The more we can learn about the extraordinary mechanisms that Amolops and other animals have developed to hear and communicate with one another, the more fully we can understand the hearing process in humans, and the more inspired we can be in developing new treatments for hearing loss." ®

Choosing a cloud hosting partner with confidence

More from The Register

next story
Renewable energy 'simply WON'T WORK': Top Google engineers
Windmills, solar, tidal - all a 'false hope', say Stanford PhDs
SEX BEAST SEALS may be egging each other on to ATTACK PENGUINS
Boffin: 'I think the behaviour is increasing in frequency'
HUMAN DNA 'will be FOUND ON MOON' – rockin' boffin Brian Cox
Crowdfund plan to stimulate Blighty's space programme
Post-pub nosh neckfiller: The MIGHTY Scotch egg
Off to the boozer? This delicacy might help mitigate the effects
I'M SO SORRY, sobs Rosetta Brit boffin in 'sexist' sexy shirt storm
'He is just being himself' says proud mum of larger-than-life physicist
NASA launches new climate model at SC14
75 days of supercomputing later ...
Britain's HUMAN DNA-strewing Moon mission rakes in £200k
3 days, and Kickstarter moves lander 37% nearer takeoff
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Choosing a cloud hosting partner with confidence
Download Choosing a Cloud Hosting Provider with Confidence to learn more about cloud computing - the new opportunities and new security challenges.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.