HOME >> BIOLOGY >> NEWS
World's largest forest birds may produce world's deepest bird calls

NEW YORK (OCT. 27) -- A family of huge forest birds living in the dense jungles of Papua New Guinea emit low-frequency calls deeper than virtually all other bird species, possibly to communicate through thick forest foliage, according to a study published by the New York-based Wildlife Conservation Society.

Published in the recent issue of the scientific journal The Auk, the study says that three species of cassowaries flightless birds that can weigh as much as 125 pounds produce a "booming" call so low that humans may not be able to detect much of the sound. The researchers draw similarities between the birds' calls and the rumbling elephants make to communicate.

"When close to the bird, these calls can be heard or felt as an unsettling sensation, similar to how observers describe elephant vocalizations," said WCS researcher Dr. Andrew Mack, the lead author of the study.

Known not only for their great size, but also their spectacular, helmet-like bony casques, and blue and red skin around their neck and head, Cassowaries are highly vulnerable to over-hunting and habitat loss. They are also considered among the world's most dangerous birds, due to their ability to kick when threatened, using a dagger-like spur on their feet with sometimes deadly results.

The authors and their collaborators are now pursuing studies that examine the physics of low frequency sound production and reception. They speculate that the cassowaries' casque might serve a function in both, most likely sound reception.

"These investigations are exciting because many dinosaur fossils exhibit casques at least superficially similar to those of living cassowaries," said Mack. "No one knows for sure what purpose these served in these dinosaurs, so further study of living cassowaries might provide clues to how dinosaurs communicated."

Coincidentally, the great early 20th Century dinosaur hunter, Barnum Brown, described the Corythosaurus, otherwise known as the C
'"/>

Contact: Stephen Sautner
ssautner@wcs.org
718-220-3682
Wildlife Conservation Society
27-Oct-2003


Page: 1 2

Related biology news :

1. Worlds largest scientific society convenes regional meeting June 2-4 in Indianapolis
2. Worlds oldest modern hummingbirds described in Science
3. Worlds oldest mouse celebrates milestone birthday
4. Worlds largest tiger reserve declared in Myanmar
5. Worlds first databank for all living systems
6. Worlds largest-ever sea turtle symposium to address plummeting populations of sea turtles
7. Worlds first robot scientist proves a major success in the lab
8. Worlds leading mad cow diagnostic company, responds to USDAs additional BSE protection measures
9. Worlds largest scientific society holds regional meeting in Columbia, Mo.
10. Worlds most alkaline life forms found near Chicago
11. Worlds largest scientific society holds regional meeting in Long Beach, Calif.

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/2/2017)... Australian stem cell and regenerative medicine company, ... an agreement with the Monash Lung Biology Network, a ... and Department of Pharmacology at Monash University, ... to support the use of Cymerus™ mesenchymal stem cells ... Asthma is a chronic, long term lung condition recognised ...
(Date:2/28/2017)... LOS ANGELES , Feb. 28, 2017   ... identity verification software globally, announces significant enhancements to new ... in May 2016. New products include mobile and desktop ... and DocX TM - a real time manual ... Acuant,s core idScan® technology provides the fastest and most ...
(Date:2/28/2017)... Februar 2017  EyeLock LLC, ein marktführendes Unternehmen im ... biometrische Lösung zur Iris-Erkennung auf der neuesten ... auf dem Mobile World Congress 2017 (27. ... Halle 3, Stand 3E10, vorstellen. ... Haven™ – eine Kombination aus Hardware, Software ...
Breaking Biology News(10 mins):
(Date:3/28/2017)... (PRWEB) , ... March 28, 2017 , ... ... at a Marketing Roundtable on March 22 in Philadelphia. The event was offered ... , The Marketing Roundtable featured breakout groups and interaction with speakers ...
(Date:3/28/2017)... LONDON , March 28, 2017 ... to better understand Enzo Biochem and its partnering interests and ... since 2010 report provides an in-depth insight into the partnering ... On demand company reports are prepared upon purchase ... and company data. The report will be delivered ...
(Date:3/28/2017)... , March 28, 2017  The National Pharmaceutical ... joined the health policy research organization as its newest ... and Regulatory Affairs ( North America ), ... of Directors. "We,re pleased to have Ipsen ... President Dan Leonard . "We welcome their insights ...
(Date:3/28/2017)... , March 28, 2017 Biostage, ... biotechnology company developing bioengineered organ implants to treat cancers ... trachea, today announced that Jim McGorry, CEO ... and BioEngineering panel at the MassBio 2017 ... 2:30 PM ET in Cambrige, Massachussetts. The 3D ...
Breaking Biology Technology:
Cached News: