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SCIENCEThursday 22 October 2015

Doggie DNA study says Fido first appeared in Central Asia 

MALCOLM RITTER                DNA from around the world
AP Science Writer             is pointing to Central Asia.
NEW YORK (AP) — Where         Man’s best friend may
did dogs first arrive on the  have evolved somewhere
scene? Scientists have long   near what is now Nepal
debated that question,        and Mongolia, researchers
and now a study of doggie     say.

September was record hot
globally; 7th time this year 

                                                               In this Saturday, Jan. 14, 2012 file photo, dogs play on a street in Lumbini, believed to be the birth-
                                                               place of Buddha, southwest of Katmandu, Nepal. 

                                                                                                                                                                                   Associated Press

This photo provided by the XL Catlin Seaview Survey, taken in  Previous studies have sug-   most ancient roots. That       Central Asia. In an email,
February 2015, shows coral after bleaching in American Samoa,  gested southern China, the   pointed to Central Asia.       he questioned Boyko’s use
when the XL Catlin Seaview Survey responded to a NOAA coral    Middle East, Siberia and     The analysis did not tackle    of modern-day genetic
bleaching alert.                                               Europe as the place where    the contentious question of    material as a guide to the
                                                               our first domesticated ani-  when dogs appeared.            distant past.
SETH BORENSTEIN               cords, tying 1998 for the        mal arose from wolves at     Results were reported in a     Another expert, Greger
AP Science Writer             most monthly heat records        least 15,000 years ago.      paper released Monday          Larson of Oxford University,
WASHINGTON (AP) — This        broken. This year, only Jan-     For the new work, Adam       by the journal Proceedings     called the paper “a major
past September was the        uary and April did not sur-      Boyko of Cornell University  of the National Academy        step forward” but said he
hottest ever worldwide —      pass records going back          and others analyzed DNA      ofSciences. Even Boyko         also suspected that mod-
the seventh monthly re-       to 1880. Climate scientists      from 549 dogs that repre-    doesn’t think the work will    ern DNA isn’t the way to
cord set this year.           blame man-made global            sented 38 countries in Af-   end the debate among sci-      go. Now that Central Asia
The U.S. National Oceanic     warming and El Nino.             rica, the Americas, Asia,    entists. “I’m not pretending   has been added to the
and Atmospheric Adminis-      This is has been the hot-        Europe, India, the Middle    my study alone is enough       mix, “Everyone with a fa-
tration calculated a global   test first nine months of any    East and islands north and   to rally the community to-     vorite region can point to
temperature for Septem-       year. NOAA climate sci-          east of Australia. The ani-  gether,” he said.              at least one paper that
ber of 60.62 degrees (15.9    entist Jessica Blunden said      mals weren’t house pets,     He’s right. Robert Wayne of    supports their suspicions,”
degrees Celsius), beating     it would take a highly un-       but rather “village dogs”    the University of California,  Larson wrote in an email.
the record set in 2014.       likely cold stretch the rest     that wandered freely in the  Los Angeles, who proposed      Larson is involved in an in-
Seven of the nine months      of the year for 2015 not to      streets or fields.           a European origin for dogs     ternational project to tack-
this year have broken         pass 2014 as the hottest on      The researchers exam-        in 2013 based on analysis of   le the question with ancient
monthly global heat re-       record.q                         ined the DNA for signals of  ancient DNA, said he didn’t    DNA and anatomical com-
                                                               where the dogs had the       buy the conclusion about       parisons. q
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