Navigation Links
Why Some Wolves Became Dogs
Date:1/23/2013

By Barbara Bronson Gray
HealthDay Reporter

WEDNESDAY, Jan. 23 (HealthDay News) -- The question of how some wolves evolved into the trusty dogs that work on farms, lead the blind and curl up on pillows in bedrooms has remained largely unanswered.

Until now.

An international team of researchers used complex genetic analysis and an understanding of archeology, ecology, biochemistry and agricultural science to discover that adaptations that allowed dogs to thrive on starch-rich diets were central to the domestication of canines.

"I think the domestication of dogs is especially interesting because we have such a special relationship with dogs; they stand out in terms of being domesticated animals, as they become part of our families," explained study author Erik Axelsson, an assistant professor at Uppsala University, in Sweden.

The transition from wolf to dog was relatively simple. In early agricultural settlements, "humans began to gather their trash into small waste dumps, which might have attracted wolves because the waste dumps provided a relatively constant supply of food," Axelsson explained. "That sort of nutrition must have been the leftover remains -- of what they ate, which included starch."

To be an efficient scavenger, a wolf had to have an effective method of digesting starch, he said. "Some wolves were slightly better than others at digesting starch and had an advantage. A natural selection process created animals that we later called dogs."

Axelsson said it's actually easy to envision how it might have happened. To be able to effectively grab food out of the waste dump, dogs had to be comfortable around people. "Imagine a shy wolf running away every time it saw a human," he noted.

As for when the evolution of wolves into dogs may have occurred, Axelsson said it's hard to give a well-defined time. He said both archeological and genetic data suggests it could have happened anywher
'/>"/>

Copyright©2012 ScoutNews,LLC.
All rights reserved

Page: 1 2 3

Related medicine news :

1. Italian wolves prefer pork to venison
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/25/2015)... After the sensational buzz surrounding their ... wellness company Trivedi Master Wellness™ agrees to ... series titled, “Consciousness is Power.” Presently, the Live-Streaming event ... at the routinely allotted time from 10:00pm PST/1:00pm EST ... made available to the public and accessible on the ...
(Date:5/24/2015)... York, NY (PRWEB) May 24, 2015 ... on Sunday, May 24th in San Diego at Petco Park. ... throughout North America. On May 20th, they had a ... At their preview show in Los Angeles, this beloved ... entirety; they also played fan favorites such as "Jumping Jack ...
(Date:5/24/2015)... May 24, 2015 EnviroLeather™ by ... “InkGard™ Plus” – a classic, rugged leather grain ... allowing difficult stains, including ink, to be easily ... colors suitable for corporate, healthcare, hospitality and education ... with EnviroLeather’s goal of developing products that are ...
(Date:5/24/2015)... Lake Geneva, WI (PRWEB) May 24, ... Bea Mercy Health System CEO ... their principal and honored at the ... event held April 15 at Geneva ... include (by school): ,     -Badger High ...
(Date:5/23/2015)... CA (PRWEB) May 23, 2015 With ... small businesses, are finding it increasingly difficult to provide ... which fail to provide adequate insurance for employees stand ... businesses been such an integral part of a business’s ... affordable healthcare for businesses, Online USA Doctors has created ...
Breaking Medicine News(10 mins):Health News:Hundreds of People Are Thrilled to Hear that Trivedi Master Wellness™ Promises to Hold Another Workshop in June 2015 2Health News:Hundreds of People Are Thrilled to Hear that Trivedi Master Wellness™ Promises to Hold Another Workshop in June 2015 3Health News:The Rolling Stones Tickets in San Diego, Orlando, Minneapolis, Dallas, Pittsburgh, Indianapolis, Atlanta, Detroit, Milwaukee, Kansas City, Columbus, Nashville & Raleigh 2Health News:EnviroLeather By LDI Launches "InkGard Plus" - Stain Resistant Faux Leather 2Health News:Mercy Foundation Honors 16 Students for Making a Difference - Mercy Health System Javon Bea 2Health News:Online USA Doctors Now Offers Cost-Saving Alternative Healthcare for Businesses 2Health News:Online USA Doctors Now Offers Cost-Saving Alternative Healthcare for Businesses 3
... thrown Europe’s poultry industry into doldrums. An urgent call has ... provide succor to the struggling poultry producers. The Union is ... consumers. , ,The EU's executive branch would be ... half, to prop up the prices of poultry, that had ...
... lead to bacterial infection and gastrointestinal illness, reports a ... animals//. The results of the study further project that ... as hand washing could prevent such infections. ... presented at the International Conference on Emerging Infectious Diseases, ...
... The Australian government has recently started, ads campaigning the need ... being a couch potato all day long//, but the mothers ... children are so. In a medical survey conducted by the ... overweight or chubby the mothers failed to accept it saying ...
... Scientific community members are worried about whether sporadic outbreaks of ... pandemic//. Although the impact of the H5N1 bird flu infection ... pandemic could claim a million lives, worldwide. ,The ... infect birds. However, it has not inherited genetic changes that ...
... much on the cards that will be a landmark on ... 1000 crore project which will come up// in two phases ... heart and cancer patients. Bangalore and Ahmedabad will follow ... Asia Heart Foundation chairman, had a meeting with the chief ...
... Sanofi-Aventis. It is one of the leading insomnia drug companies. But ... going to go// off-patent this October. There's a range of insomnia ... is a great relief for some of the people who depend ... has been in short supply for the French pharmaceutical company of ...
Cached Medicine News:Health News:Petting Zoos Can Lead To Bacterial Infection And Illness 2Health News:Ambien and the Other Insomnia Drugs 2
(Date:5/22/2015)... 22 de mayo de 2015 ... una compañía farmacéutica de fase tardía centrada ... (pexiganan cream 0.8%), y colaboradores de investigación ... póster destacando el diseño innovador de los ... Compañía que evalúan Locilex®, su nuevo péptido ...
(Date:5/22/2015)... -- BioLife Solutions, Inc. (NASDAQ: BLFS ), a leading developer, ... and cryopreservation freeze media and precision ... the "Company"), announced that the Company is scheduled to present ... Company is scheduled to present at the Conference at 1:30 ... Hyatt Hotel in New York City ...
(Date:5/22/2015)... 22, 2015 The leading companies in ... global cardiac rhythm management device market dominate their ... Medtronic, St. Jude Medical, Boston Scientific and Asahi ... market segment. The healthcare market research publisher,s report, ... 2015 as a base year, providing forecasts for ...
Breaking Medicine Technology:Dipexium anuncia presentación en el séptimo Simposio Internacional sobre el Pie Diabético 2Dipexium anuncia presentación en el séptimo Simposio Internacional sobre el Pie Diabético 3Dipexium anuncia presentación en el séptimo Simposio Internacional sobre el Pie Diabético 4Dipexium anuncia presentación en el séptimo Simposio Internacional sobre el Pie Diabético 5Dipexium anuncia presentación en el séptimo Simposio Internacional sobre el Pie Diabético 6BioLife Solutions To Present At The 2015 Marcum MicroCap Conference In New York City 2Kalorama: Top Companies Dominate Cardiac Defibrillator Market 2Kalorama: Top Companies Dominate Cardiac Defibrillator Market 3Kalorama: Top Companies Dominate Cardiac Defibrillator Market 4
... and SUMMIT, N.J., Nov. 4, 2011 Privately held ... CELG ), together with Versant Ventures, today ... to discover and develop first-in-class cancer drugs.   ... commit $45M to Quanticel during the initial three-and-a-half-year alliance ...
... 3, 2011 /PRNewswire-Asia-FirstCall/ -- Tianyin Pharmaceutical Co., ... a pharmaceutical company that specializes in patented ... branded generics and active pharmaceutical ingredients (API) ... its flagship product Gingko Mihuan Oral Liquid ...
Cached Medicine Technology:Quanticel Pharmaceuticals Enters Into Strategic Cancer Drug Discovery Collaboration With Celgene Corporation 2Quanticel Pharmaceuticals Enters Into Strategic Cancer Drug Discovery Collaboration With Celgene Corporation 3Quanticel Pharmaceuticals Enters Into Strategic Cancer Drug Discovery Collaboration With Celgene Corporation 4TPI to Develop New Formulation for Flagship Product Gingko Mihuan 2TPI to Develop New Formulation for Flagship Product Gingko Mihuan 3
Mid-level interpretive resting ECG...
... ECG-9010 meets IEC60601-2-51 new international standard ... digital filter performance. ECG data can ... Windows PC with the optional ECG ... for operating in other countries, and ...
The Sonic WAVE™is the first market-ready Alternative to Ultrasound...
... Critical Care Xpress is an innovative, stat ... and hematology with on-board co-oximetry and integrated ... instrument. Measured tests include pH, PCO 2 ... hematocrit and hemoglobin, sodium, potassium, chloride, ionized ...
Medicine Products: