Navigation Links
Good dentistry may have saved the dinosaurs
Date:12/14/2009

Infectious diseases can be transmitted by sneezing, touching, or for Tasmanian devils biting each other on the face, a habit that may have driven the dinosaurs to extinction through the transmission of a protozoan parasite.

Jacqueline Upcroft, a member of f1000 Biology, highlights the 'paleobiological detective work' of David Varricchio and colleagues published in PLoS One. This led them to deduce that a protozoan parasite was to blame for the diseased jaw bones seen in many tyrannosaurid fossils.

The parasite's modern-day equivalent, which infects birds, eats away at the jawbone and can cause ulcers so severe that the host starves to death. Living in the jaw, the parasite may have been passed from one dinosaur to another during head biting.

Upcroft said, "this organism commonly infects doves, pigeons, turkeys and raptors, causing necrotic ulceration in the upper digestive tract," and in extreme cases it can fully penetrate the bone.

The similarity of the fossilized jawbones and modern-day samples suggests that the parasite was deadly enough to kill infected dinosaurs. Furthermore, as Upcroft notes, "this may not have been an isolated situation but may have occurred en masse and led to the extinction of the species."


'/>"/>

Contact: Steve Pogonowski
press@f1000.com
Faculty of 1000: Biology and Medicine
Source:Eurekalert

Page: 1

Related biology news :

1. USC School of Dentistry researchers uncover link between osteoporosis drugs and jaw infection
2. NYU College of Dentistry awarded $1.9 million NIH grant for HIV research
3. Saved by junk DNA
4. Grand Canyon may be as old as dinosaurs, says new study
5. Genetic sequencing of protein from T. rex bone confirms dinosaurs link to birds
6. Did the solar system bounce finish the dinosaurs?
7. Mass extinctions and the evolution of dinosaurs
8. Geologist who linked cosmic strike to dinosaurs extinction takes top prize
9. Study of polar dinosaur migration questions whether dinosaurs were truly the first great migrators
10. CT scans reveal that dinosaurs were airheads
11. Male dinosaurs may have been prehistoric babysitters, study shows
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/15/2016)... 15, 2016  A new partnership announced today ... underwriting decisions in a fraction of the time ... and high-value life insurance policies to consumers without ... With Force Diagnostics, rapid testing (A1C, Cotinine and ... (blood pressure, weight, pulse, BMI, and activity data) ...
(Date:3/31/2016)... 31, 2016   ... the "Company") LegacyXChange is excited to release ... soon to be launched online site for trading 100% ... ) will also provide potential shareholders a sense of ... to an industry that is notorious for fraud. The ...
(Date:3/22/2016)... , March 22, 2016 ... report "Electronic Sensors Market for Consumer Industry by Type ... Others), Application (Communication & IT, Entertainment, Home ... Global Forecast to 2022", published by MarketsandMarkets, ... expected to reach USD 26.76 Billion by ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Andrew D Zelenetz ... Published recently in Oncology ... touchONCOLOGY, Andrew D Zelenetz , discusses the ... is placing an increasing burden on healthcare systems ... With the patents on many biologics expiring, interest ...
(Date:6/23/2016)... ... June 23, 2016 , ... ClinCapture, ... Pennsylvania Convention Center and will showcase its product’s latest features from June 26 ... presenting a scientific poster on Disrupting Clinical Trials in The Cloud during the ...
(Date:6/23/2016)... (PRWEB) , ... June 23, 2016 , ... ... a new line of intelligent tools designed, tuned and optimized exclusively for Okuma ... 12–17 in Chicago. The result of a collaboration among several companies with expertise ...
(Date:6/23/2016)... June 23, 2016 ReportsnReports.com ... report to its pharmaceuticals section with historic and ... and much more. Complete report on ... pages, profiling 15 companies and supported with 261 ... http://www.reportsnreports.com/reports/601420-global-cell-culture-media-industry-2016-market-research-report.html . The Global Cell ...
Breaking Biology Technology: