Navigation Links
Prehistoric Water Reptile's Social Life Similar to Dolphins: Study
Date:8/11/2011

THURSDAY, Aug. 11 (HealthDay News) -- What do a prehistoric water reptile and a dolphin have in common? A lot more than you might expect, new research indicates.

A 78-million-year-old fossil of a large prehistoric aquatic reptile with its embryo offers the first evidence of live birth in these creatures. It also suggests that they may have had a social structure similar to modern dolphins, U.S. scientists say.

Plesiosaurs were meat-eating, four-flippered long-necked reptiles that lived during the Mesozoic Era.

Prevous research has shown that live birth occurred in several other groups of aquatic reptiles that lived in the same era, but this is the first evidence of live birth in plesiosaurs.

"Scientists have long known that the bodies of plesiosaurs were not well suited to climbing onto land and laying eggs in a nest. So the lack of evidence of live birth in plesiosaurs has been puzzling," paper co-author F. Robin O'Keefe, of Marshall University in Huntington, W. Va., said in a museum news release.

"This fossil documents live birth in plesiosaurs for the first time, and so finally resolves this mystery. Also, the embryo is very large in comparison to the mother, much larger than one would expect in comparison with other reptiles."

The Natural History Museum of Los Angeles County is now displaying the adult plesiosaur and its embryo, whose skeleton found in the 15.4-foot-long adult plesiosaur specimen includes ribs, 20 vertebrae, shoulders, hips, and paddle bones.

"Many of the animals alive today that give birth to large, single young are social and have maternal care. We speculate that plesiosaurs may have exhibited similar behaviors, making their social lives more similar to those of modern dolphins than other reptiles," O'Keefe said.

A report on the discovery appears in the Aug. 12 issue of the journal Science.

More information

The Australian Broadcasting Corp. has more about plesiosaurs.

-- Robert Preidt

SOURCE: Natural History Museum of Los Angeles County, news release, Aug. 11, 2011


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Hang out at the water cooler, live longer
2. Sandias CANARY software protects water utilities from terrorist attacks and contaminants
3. Parents Can Help Stop Spread of Water Park Illnesses
4. Alcohol, Water Sports Can Be Deadly Mix
5. Climate change threatens endangered freshwater turtle
6. Make Water Safety a Priority for Your Kids
7. Tracking groundwater pollution to its source
8. University of Houston researcher receives grant to study water pollutants
9. Underwater, Humans Hear Through Their Bones
10. OU graduate student developing solutions for water problems in Ethiopia
11. Spring Cleaning Lands Many Americans in Hot Water
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Prehistoric Water Reptile's Social Life Similar to Dolphins: Study
(Date:10/12/2017)... ... October 12, 2017 , ... ... treating sleep apnea using cutting-edge Oventus O2Vent technology. As many as ... disorder characterized by frequent cessation in breathing. Oral appliances can offer significant relief ...
(Date:10/12/2017)... ... October 12, 2017 , ... IsoComforter, Inc. ( ... today the introduction of an innovative new design of the shoulder pad. The ... get maximum comfort while controlling your pain while using cold therapy. By utilizing ice ...
(Date:10/12/2017)... ... October 12, 2017 , ... Information about the technology: ... develop to enable prevention of a major side effect of chemotherapy in children. ... pediatric patients. For cisplatin, hearing loss is FDA listed on-label as a dose ...
(Date:10/12/2017)... ... October 12, 2017 , ... Leading pediatric oncology experts at ... D.C., for the 49th Congress of the International Society of Paediatric Oncology ... the Center for Cancer and Blood Disorders at Children’s National, and Stephen ...
(Date:10/12/2017)... ... 12, 2017 , ... Health Literacy Innovations (HLI), creator of ... and the Cancer Patient Education Network (CPEN), an independent professional organization that shares ... strategic alliance. , As CPEN’s strategic partner, HLI will help support CPEN ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)... FRISCO, Texas , Oct. 11, 2017 /PRNewswire/ ... healthcare services, has amplified its effort during National ... patients about hereditary cancer risks. ... Journal of Clinical Oncology calculated that more than ... to have inherited mutations in BRCA1 or BRCA2 and ...
(Date:10/10/2017)... Oct. 10, 2017   West Pharmaceutical Services, Inc. ... for injectable drug administration, today shared the results of ... for improving the intradermal administration of polio vaccines. The ... Summit in May 2017 by Dr. Ondrej Mach ... World Health Organization (WHO), and recently published in the ...
(Date:10/4/2017)... South Korea , Oct. 4, 2017  South ... its next-generation CPR training aide "cprCUBE" on Kickstarter. The ... chest compression during cardiac arrests with better efficiency compared ... It also offers real-time feedback on efficacy of the ... The crowdfunding campaign has a goal to raise $5,000. ...
Breaking Medicine Technology: