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:4/1/2020)... ... April 01, 2020 , ... The ... named Jean-François Duliere as a European Regulatory Advisor. Effective 1 April 2020, Duliere ... and facilities design for biotechnology, oral solid dosage (OSD), and sterile manufacturing. , ...
(Date:3/20/2020)... ... March 20, 2020 , ... ImStem Biotechnology, Inc. ... (ESC) derived mesenchymal stem cells (hES-MSC), through a proprietary method using a trophoblast ... and rare orphan diseases, today announced that the U.S. Food and Drug Administration ...
(Date:3/13/2020)... ... 13, 2020 , ... According to the American Academy of ... possibly be transmitted by aerosol or direct contact with the conjunctiva, the superficial ... precautions to avoid contracting the coronavirus. Touching the eyes while inserting contact lenses ...
Breaking Biology News(10 mins):
(Date:3/10/2020)... ... March 10, 2020 , ... Ortho Clinical Diagnostics, a ... laboratory solutions, announced its ORTHOTM Sera, ID-MTS, a suite of extended antigen in a ... cleared to run on ORTHO VISION® and ORTHO VISION® Max in the United States ...
(Date:3/3/2020)... Ill. (PRWEB) , ... March 03, 2020 , ... ... company serving the pharmaceutical, biotech and medical device industries, was recognized by INC. ... 5,000 puts forward annual lists to note industry leaders greatly impacting their spheres ...
(Date:2/21/2020)... ... February 20, 2020 , ... In a free ... speakers from Synteract including Lisa Dilworth, BS, MS, Vice President Rare, Orphan ... challenges, with feasible strategies and solutions to support patients, sites and sponsors. , When ...
(Date:2/19/2020)... ... February 18, 2020 , ... Shoreline Biome, ... to the strain level, recently unveiled a novel DNA isolation product. , Shoreline ... isolation of high molecular weight (HMW) single-stranded DNA (ssDNA) in excess of 40 ...
Breaking Biology Technology:
Cached News: