Navigation Links
Study: Predatory dinosaurs had bird-like pulmonary system

What could the fierce dinosaur T. rex and a modern songbird such as the sparrow possibly have in common? Their pulmonary systems may have been more similar than scientists previously thought, according to new research from Ohio University and Harvard University.

Though some scientists have proposed that predatory dinosaurs had lungs similar to crocodiles and other reptiles, a new study published in this week's issue of the journal Nature suggests the ancient beasts boasted a much bigger, more complex system of air sacs similar to that in today's birds. The finding is one of several studies in recent years to paint a new, more avian-like portrait of meat-eaters such as T. rex: The creatures may have had feathers, incubated their eggs, grown quickly and perhaps even breathed like birds.

"What was once formally considered unique to birds was present in some form in the ancestors of birds," said Patrick O'Connor, an assistant professor of biomedical sciences at Ohio University's College of Osteopathic Medicine and lead author on the study, which was funded in part by the National Science Foundation.

O'Connor and collaborator Leon Claessens of Harvard University visited museums in New York, Berkeley, Chicago, Pittsburgh, Washington, D.C., Berlin and London to examine the bones of ancient beasts, and also studied a 67-million-year-old dinosaur, Majungatholus atopus, that O'Connor had discovered in Madagascar as a graduate student in 1996. They compared the dinosaur skeletons with those of modern birds to draw comparisons of how the soft tissues in the dinosaurs may have been structured.

Birds long have fascinated biologists because of their unusual pulmonary system. Pulmonary air sacs prompt air to pass through the lungs twice during ventilation. This system also creates holes in the skeleton of birds, which has led to a popular notion that birds have "air in their bones," O'Connor said.

The new study, which examined how the air syst
'"/>

Source:Ohio University


Page: 1 2 3

Related biology news :

1. Study: Soap And Water Work Best In Ridding Hands Of Disease Viruses
2. Study: homemade gene expression technology unreliable
3. Study: Well-known protein helps stem cells become secretory cells
4. Study: Harmless virus kills some cancers
5. Study: Plants use dual defense system to fight pathogens
6. Study: Competition for sex is a jungle out there
7. Study: Paramedics save more lives when they dont follow the rules
8. Study: Living coral reefs provide better protection from tsunami waves
9. Did feathered dinosaurs exist?
10. Large dinosaurs were extremely hot in their day, UF study finds
11. Trotting with emus to walk with dinosaurs
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Study Predatory dinosaurs had bird like pulmonary system

(Date:7/9/2014)... are less fit in terms of cardiorespiratory capacity, ... Moreover, southern adolescents are more obese and present ... those from the centre-north of Europe. , These ... ambitious study conducted by scientists from the University ... with 25 other European research groups. The study ...
(Date:7/9/2014)... if they are used in the right ways. ... Women,s Hospital and coauthors analyzed six use cases ... triage; decompensation (when a patient,s condition worsens); adverse ... multiple organ systems. They suspect that cost-savings benefits ... with all six scenarios will be significant. The ...
(Date:7/8/2014)... run" or as a well-deserved break, and you,ll eat less afterward. ... you,ll later eat more dessert and snacks to reward yourself. , ... involved two studies where adults were led on a 2 km ... going to be an exercise walk or a scenic walk. ... were then given lunch. Those who believed they had been ...
Breaking Biology News(10 mins):Adolescents from southern Europe are less fit and more obese than central-northern European peers 2The impact of big data on health care: Health Affairs' July issue 2
... today for the HudsonAlpha- Science 2014 Conference on ... HudsonAlpha biotechnology campus in Huntsville, Ala. The ... of this emerging scientific field. ImmunoGenomics sits at ... the use of DNA sequencing to improve disease diagnosis ...
... an oil spill, and images of fouled beaches and ... visible effects as well. For instance, even low levels ... fish embryos and larvae, reducing the likelihood that those ... for some time, but the underlying mechanism has remained ...
... by memory deficits. Basel scientists have now identified a ... is important for human brain activity, memory and the development ... online edition of the US journal Neuron . ... a telephone number - is a fundamental function of the ...
Cached Biology News:Registration opens for HudsonAlpha-Science's 2014 Conference on ImmunoGenomics 2Registration opens for HudsonAlpha-Science's 2014 Conference on ImmunoGenomics 3Scientists discover the mechanism of heart failure in fish exposed to oil spills 2Scientists discover the mechanism of heart failure in fish exposed to oil spills 3How memory and schizophrenia are connected 2
(Date:1/15/2014)... Jan. 15, 2014 TaiGen Biotechnology Company, Limited ("TaiGen") ... with R-Pharm, a leading Russian pharmaceutical company, to develop ... Russian Federation , Turkey ... (CIS). Nemonoxacin is a novel antibiotic for the treatment of ...
(Date:1/14/2014)... , Jan. 14, 2014  3D Communications, a leading provider of ... regulatory, business, and media events in the United States ... former associate Virginia Cox , JD, is returning to the ... Virginia Cox re-joins 3D after more than two years of ...
(Date:1/14/2014)... and BETHESDA, Md. , Jan. 14, ... with two institutes from the National Institutes of Health ... bringing safer, more effective treatments to patients on a ... for Advancing Translational Sciences (NCATS) and the National Eye ...
(Date:1/14/2014)... January 14, 2014 Global Record ... innovative information technology solutions for patients, physicians, the ... stakeholders, announced today the signing of a three-year ... and Drug Administration (FDA). This initiative is ...
Breaking Biology Technology:TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Former FDA Associate Commissioner Returns To 3D Communications 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3Global Record Systems Announces Research Collaboration Agreement with FDA to Create a Novel “Big Data” Paradigm for Collection of Patient Safety and Outcomes Information 2
... temper tantrums lately? Or an adolescent episode of hormone-clouded ... a bit of flagging memory? , ,Given that organizations ... another, it's easy to begin thinking about organizations as ... they age. It's even understandable to want a model ...
... ,Jia Hu of China - Source: Getty Images The ... every four years. They're held every year. Though this is ... year as the pervasive growth of the industry becomes part ... run every four years and last two weeks, the biotech ...
... MADISON, Wis. - Ownership and accountability is the way ... 448-bed community hospital in Madison that provides medical care ... living facility, laboratories and a home health care service. ... Methodist Hospital in 1987, Meriter includes more than 430 ...
Cached Biology Technology:Aging IT 2Aging IT 3The Olympics: A Biotech Perspective 2The Olympics: A Biotech Perspective 3Meriter IT team builds project performance through internal relationships 2Meriter IT team builds project performance through internal relationships 3Meriter IT team builds project performance through internal relationships 4
... Cycler unit is an inexpensive personal or mini ... PCR process. Lightweight, with a small footprint, it ... including the researcher's desk. , The Gene Cycler ... do not have access to a large laboratory ...
... Select Immunophosphatase Secondary Detection System is intended ... Prediluted Primary Antibody reagents, which contain rat ... of antigens by light microscopy in paraffin-embedded ... System may also be used with other ...
... RNA stain is used to stain and ... agarose gels and does not interfere with ... nm transilluminator, the stain emits a red-orange ... film or with a CCD camera-based gel ...
... efficient interfacing with mass spectrometry. Improved ... demands for benefits like these have ... routine applications. Standard HPLC systems, however, ... to operate with smaller bore columns ...
Biology Products: