Navigation Links
Komodo even more deadly than thought: Research
Date:5/18/2009

The carnivorous reptiles (Varanus komodoensis) are known to bite prey and release them, leaving them to bleed to death from their wounds: the victims are reported to go into shock before the dragons kill and eat them.

Some researchers believe that prey are killed by pathogenic bacteria in the dragons' mouths but the new research published in the latest issue of Proceedings of the National Academy of Sciences shows that the combination of the reptiles' teeth and venom likely accounts for their hunting prowess.

"The view that the Komodo routinely kills using dirty oral bacteria is wrong," says research co-author, Dr Stephen Wroe from the University of New South Wales, Australia. "The dragon is truly poisonous. It has modified salivary glands that deliver both hypertensive and anti-blood-clotting agents, which, in combination with lightweight but sophisticated cranial and dental adaptations, allows it to kill large animals through rapid blood loss."

The researchers used computer modeling to analyse the Komodo dragon bite and found that dragons have much weaker bites than crocodiles of a similar size. However, magnetic resonance imaging revealed the dragons have complex venom glands as well.

After surgically excising the glands from a terminally ill dragon in a zoo, the researchers used mass spectrometry to obtain a profile of the venom, finding that the toxin was similar to that of the Gila monster and many snakes. The venom causes a severe loss in blood pressure by preventing blood clotting and widening blood vessels, thus inducing shock in a victim.

The researchers also examined fossils of the giant extinct dragon relative Varanus megalania and determined that this seven-metre-long lizard was one of the largest venomous animals to have ever lived.

A member of the goanna family with ancestors dating back more than 100 million years, the Komodo dragon is the world's largest living liza
'/>"/>

Contact: Dr. Steve Wroe
s.wroe@unsw.edu.au
61-425-330-273
University of New South Wales
Source:Eurekalert

Page: 1 2

Related biology news :

1. Scripps research team blocks bacterial communication system to prevent deadly staph infections
2. Northwestern to expose most deadly infectious diseases in 3-D
3. Best treatment identified to reduce deadly Staph infections
4. Research unveils new hope for deadly childhood disease
5. Deadly genetic disease prevented before birth in zebrafish
6. Ayurvedic nightshade deadly for dengue mosquito
7. Sydney harbors deadly diet for sea creatures
8. New vaccine may give long-term defense against deadly bird flu and its variant forms
9. Deadly dose: Rensselaer heparin expert helps uncover source of lethal contamination
10. Deadly rugby virus spreads in sumo wrestlers
11. 15-state Southern obesity summit to focus on deadly epidemic
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/28/2014)... connections in prairie dogs have uncovered relationships that ... dog communities that may help limit the spread ... The work was done by researchers from North ... Center (NESCent). , "Prairie dogs are increasingly rare ... Jennifer Verdolin, lead author of a paper on ...
(Date:7/27/2014)... to date, researchers from the U.K. provide national, regional, ... virus (HCV). Findings published in Hepatology, a journal of ... indicate that genotype 1 is the most prevalent worldwide, ... reside in East Asia. Genotype 3, at just over ... by genotypes 2, 4, 6, and 5. , ...
(Date:7/27/2014)... scientists at Barts Cancer Institute have found that targeting ... significantly more effective, according to research published in ... Institute, part of Queen Mary University of London, have ... signals the body to repair itself after chemotherapy or ... the researchers removed FAK from blood vessels that grew ...
Breaking Biology News(10 mins):Social network research may boost prairie dog conservation efforts 2Hepatitis C virus genotype 1 is most prevalent worldwide 2New drug target can break down cancer's barrier against treatment 2
... (Cincinnati, OH) In a study published today in the ... an international team of researchers based in the U.S. and ... lethal, breath holding episodes associated with the neurological disease Rett ... that affects around 1 in 10,000 young girls. On October ...
... Institute in Boston have identified a new type of cell ... animal,s own cells from immune system attack. This ... drive lupus and other autoimmune diseases in which the immune ... The discovery, published in the September 16 issue of ...
... October 4, 2010 Onconova Therapeutics, Inc. announced ... regarding a Special Protocol Assessment (SPA) for the design ... 01910.Na) as monotherapy in patients with myelodysplastic syndromes (MDS), ... the bone marrow. The SPA provides FDA evaluation and ...
Cached Biology News:Research breakthrough hailed on the anniversary of gene discovery 2Discovery of a cell that suppresses the immune system 2Onconova announces FDA agreement of a SPA for a pivotal phase 3 trial of Estybon in MDS 2
(Date:7/28/2014)... The Workgroup for Electronic Data Interchange ... of health IT to create efficiencies in healthcare information ... Workgroup has developed an issue brief titled, “What ... The HPID Workgroup, a part of WEDI’s Strategic National ... Medicare and Medicaid Services (CMS) to identify common misuse ...
(Date:7/28/2014)... TORONTO , July 28, 2014 /PRNewswire/ -   ... latest group of companies to join its growing portfolio ... hallmarks of Toronto,s JOLT accelerator, ... startups on the roster. Since its ... that have successfully raised  $7.5M of financing. Now at ...
(Date:7/28/2014)... 2014 Appistry, Inc. , a ... the power of genomics to next-generation medicine, announced today ... Challenge . , Two Appistry staff will be ... Center for Genome Resources, and Mr. Neil Miller, director ... Kansas City. Rounding out the panel are Appistry’s Dr. ...
(Date:7/28/2014)... , July 28, 2014 Research and ... Particle Size Analysis Market 2014-2018" report to their offering. ... Particle size analysis is a technique used to determine the ... or liquid. It is crucial to analyze the size of ... Therefore, particle size analysis is performed to determine the behavior ...
Breaking Biology Technology:WEDI’s HPID Workgroup Announces Release of Issue Brief: “What is the Difference Between a Health Plan and Payer?” 2JOLT Announces the Next 6 Startups to Join its Summer 2014 Cohort 2JOLT Announces the Next 6 Startups to Join its Summer 2014 Cohort 3Appistry Names Industry Experts from the National Center for Genome Resources and Mercy Children's, Kansas City, to Judge Pipeline Challenge Competition 2Global Particle Size Analysis Market 2014-2018 2
... Molecular Origami is ... help illustrate the basics of DNA origami, Harvard’s Wyss Institute has created a Flash-based interactive ... a DNA molecule and then allowing it to self assemble. , ... Boston, Mass. (PRWEB) January 28, 2010 -- Molecular ...
... world,s most powerful supercomputers, scientists at Lawrence Berkeley ... a good match for the future development of ... for green energy production because of their ability ... on "Franklin," a Cray XT4 massively parallel processing ...
... PRINCETON, N.J. , Jan. 27 Covance Inc. (NYSE: ... December 31, 2009 of $0.64 per diluted share.  For ... basis, inclusive of $0.10 per share in gains related to ... in the third quarter.  Excluding the gains on sales and the tax ...
Cached Biology Technology:Wyss Institute Launches "Molecular Origami" Interactive Feature 2Wyss Institute Launches "Molecular Origami" Interactive Feature 3Mismatched alloys are a good match for thermoelectrics 2Mismatched alloys are a good match for thermoelectrics 3Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 2Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 3Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 4Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 5Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 6Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 7Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 8Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 9Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 10Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 11Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 12Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 13Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 14Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 15Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 16Covance Reports Fourth Quarter Revenue of $485M and EPS of $0.64 Per Share 17
... 2D polyacrylamide gel electrophoresis (2D-PAGE) with biological ... core technology platform for proteomic analysis. 2D-PAGE ... samples limited only in the dynamic range ... proteins. Quantitative image based analysis of separated ...
... is ideal for high-fidelity amplification of ... as cloning and mutagenesis. High ... enzyme preparation containing recombinant DNA polymerase ... Site5' exonuclease) activity. Platinum Anti-Pfx ...
... PLAU N-term Antibody This antibody is generated ... synthetic peptide selected within aa 50~150 of ... in PBS with 0.09% (W/V) sodium azide. ... G column and eluted out with both ...
...
Biology Products: