Navigation Links
Male crickets with bigger heads are better fighters, study reveals, echoing ancient Chinese text
Date:1/7/2009

Observing and betting on cricket fights has been part of Chinese cultural tradition since at least the Sung Dynasty (A.D. 960-1278). This ancient practice has resulted in quite a detailed list of characteristics that Chinese practitioners think make for champion fighters. "Because money was involved, there was a strong incentive for the practitioners of this sport to observe their cricket fighters closely," says Kevin Judge, a biology postdoctoral researcher at University of Toronto Mississauga.

Interestingly, an 800-year-old Chinese text mentions that the best cricket fighters have the largest heads. In nature, male field crickets fight one another over territories and access to potential mates by using their pointed and pincer-like mouthparts as weapons. In a study published in the Dec. 24 issue of the online, open-access, peer-reviewed journal PLoS ONE, Judge and co-author Vanessa Bonanno show that, indeed, males with larger heads and mouthparts are more successful in fights with smaller-headed rivals. They also show that male field crickets have larger heads and mouthparts than females, which, "makes sense given that female crickets don't fight over mates," says Judge.

Field crickets, a diverse group of insects distributed around the globe, have been important subjects for researchers interested in studying the evolution of animal aggression and the settlement of contests between individuals. For all that study, the influence of heads and mouthparts as weaponry has been largely overlooked in field crickets, unlike their close allies, the New Zealand weta, says Judge.

The study by Judge and Bonanno, "tested theories of contest settlement and sexual selection, and how body shape has evolved to help males in competition with other males," says Judge.

The researchers conducted two experiments to test the hypothesis that relatively larger weaponry conveys an advantage to males in aggressive contests. Pairs of males w
'/>"/>

Contact: Kevin Judge
kevin.judge@utoronto.ca
905-828-5267
Public Library of Science
Source:Eurekalert

Page: 1 2

Related biology news :

1. In the animal world, bigger isnt necessarily better
2. Plants grow bigger and more vigorously through changes in their internal clocks
3. Largest ever study of genetics of common disease just got bigger
4. Insects take a bigger bite out of plants in a higher CO2 world
5. Seismic images show dinosaur-killing meteor made bigger splash
6. Economists: Reduce fish catch now for bigger net profits later
7. CT scans reveal that dinosaurs were airheads
8. United we stand: When cooperation butts heads with competition
9. Soybean database will help breeders engineer better-performing plants
10. Diverse landscapes are better: Policymakers urged to think broadly about biofuel crops
11. Diverse landscapes are better: Policymakers urged to think broadly about biofuel crops
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/11/2014)... 11, 2014  Forensicon, Inc., a Chicago ... to announce the promotion of Yaniv Schiff ... Forensics. In Schiff,s new role as Director, he will ... digital forensics examiners and provide leadership within the company,s ... http://photos.prnewswire.com/prnh/20141110/157719 Schiff joined Forensicon ...
(Date:11/7/2014)... Calif. , Nov. 7, 2014  In conjunction with ... Police Departments, The Community Foundation of the Verdugos ... DNA JUSTICE PROJECT," a $250,000 initiative to keep ... initial phase. In its first six months of existence, the ... needed evidence support for local law enforcement. "Because ...
(Date:11/6/2014)... of metastasis, yet progress in preventing and treating ... been particularly challenging to design drugs that work ... systems biology at Harvard Medical School. , ... already metastasized." , Gujral and colleagues have now ... better understand how metastasis begins. Their findings may ...
Breaking Biology News(10 mins):Yaniv Schiff Promoted to Director of Digital Forensics at Forensicon, Inc. 2Community Foundation Of The Verdugos Unveils Campaign To Fund Glendale-Burbank DNA Justice Project 2Migration negation 2Migration negation 3
... New results presented at 3rd European Lung Cancer Conference ... improve the diagnosis and treatment of malignant pleural mesothelioma, ... lungs caused by asbestos exposure. Micro RNAs ... small molecule that is more abundant in the blood ...
... Ecological Society of America,s (ESA) 97th Annual Meeting on August ... draw more than 4,300 scientists, policy makers, educators and concerned ... State marine ecologist and head of the National Oceanic and ... keynote address on Sunday, August 5th, at 5:00 p.m. ...
... (April. 17, 2012) Combined, complimentary therapies have the ... (NSC) transplantation for spinal cord repair in rat models, ... of Korean researchers who published in a recent issue ... http://www.ingentaconnect.com/content/cog/ct/ ., "When transplanted, neural stem cells ...
Cached Biology News:Promising developments in early diagnosis and treatment of mesothelioma 2Promising developments in early diagnosis and treatment of mesothelioma 3Promising developments in early diagnosis and treatment of mesothelioma 4Registration open for the Ecological Society of America's 2012 Annual Meeting in Portland, Ore. 2Neural stem cell transplants for spinal cord injury maximized by combined, complimentary therapies 2
(Date:11/22/2014)... Quebec , November 21, 2014 ... wechselt als Chief Commercial Officer zu KLOX ... SVP der Unternehmensentwicklung und Chief Financial Officer bestellt    ... Europa mit der Vermarktung seines jüngst zugelassenen Behandlungssystems zur ... Inc. ("KLOX" bzw. das "Unternehmen") ist sehr erfreut, die ...
(Date:11/21/2014)... Author Matthew J. Pallamary’s second short story ... published as a tribute to his mentor Ray ... Story” category of the 2014 USA Best Book ... USA Book News, said this year’s contest yielded over ... & Schuster, Penguin, John Wiley & Sons, Houghton Mifflin ...
(Date:11/21/2014)... Angeles, CA (PRWEB) November 21, 2014 ... it that makes Albert Einstein so instantly recognizable? Why ... African-born physicist, mathematician, astronomer and author Hilton Ratcliffe seeks ... they have nothing at all to do with science. ... Muse Harbor Publishing , November 21, 2014), Ratcliffe puts ...
(Date:11/21/2014)... SAN DIEGO , Nov. 20, 2014  Cytori ... CEO Marc Hedrick , M.D. will present live at ... December 4, 2014 TIME:    11:15 am PT / ... paste this URL into your browser,s address bar: http://bit.ly/1B2KGaL ... save time and receive event updates. This ...
Breaking Biology Technology:KLOX Technologies meldet Neubesetzung von Führungspositionen 2KLOX Technologies meldet Neubesetzung von Führungspositionen 3KLOX Technologies meldet Neubesetzung von Führungspositionen 4KLOX Technologies meldet Neubesetzung von Führungspositionen 5Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 2Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 3Mystic Ink 's Short Story Collection “A Short Walk to the Other Side” Honoring Ray Bradbury Praised As Award-Winning Finalist In USA Best Book Awards 4“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 2“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 3“Stephen Hawking Smoked My Socks” Sparks Controversy in Science World 4Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 2Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 3Cytori Therapeutics to Provide Corporate Update and Investor Presentation on December 4 through a Live, Interactive Webcast 4
... Merrimack Pharmaceuticals today announced that it will present at the Jefferies 2010 Global Life Sciences Conference ... provide a company overview at 11:00am EDT , Wednesday, June 9, 2010 at ... , , ... , , , ...
... June 1 Diplomat Specialty Pharmacy, the ... launch of Navigator Health Services, an independent division of ... pharmacy industry. The announcement was made by Diplomat Specialty ... who says that Navigator Health Services was formed in ...
... Calif. , June 1 Epeius Biotechnologies Corporation ( ... "Advanced Phase I/II Evaluation of Tumor-Targeted Gene Delivery: Intravenous Rexin-G as ... the ASCO Annual Meeting on June 8, 2010 . The ... Stanford University Medical Center, Palo Alto CA. ...
Cached Biology Technology:Merrimack Pharmaceuticals to Present at the Jefferies 2010 Global Life Sciences Conference 2Diplomat Specialty Pharmacy Launches New Navigator Health Services to Meet Next Generation Needs of Specialty Pharmacy Industry 2Diplomat Specialty Pharmacy Launches New Navigator Health Services to Meet Next Generation Needs of Specialty Pharmacy Industry 3Diplomat Specialty Pharmacy Launches New Navigator Health Services to Meet Next Generation Needs of Specialty Pharmacy Industry 4Advanced Phase I and Phase II Studies of Targeted Gene Delivery Confirm That Rexin-G Impacts Survival in Chemotherapy-resistant Bone and Soft Tissue Sarcoma (ASCO 2010) 2
... 1 ml. Improves reproducibility and ... preventing streaking.Eliminates extra spots caused ... proteins throughout entire 2-D runs, ... patterns.Ideal for both analytical and ...
LIVE/DEAD® Cell-Mediated Cytotoxicity Kit *for animal cells* *2000 assays*...
SlowFade Antifade Kit with DAPI...
Mouse Collagen IV...
Biology Products: