Dogor Explained

Dogor is a preserved canine specimen that was found in the Siberian permafrost of Sakha in 2018. It is a remarkably well preserved two-month-old male puppy with fur and whiskers remaining. The animal has been determined to be 18,000 years old. At first, DNA sequencing was unable to identify the animal as either a dog or a wolf. Anders Bergström, a postdoctoral fellow in ancient genomics at the Francis Crick Institute in London, identified Dogor as an ancient wolf as reported in a research study on June 29, 2022 in Nature magazine.[1] However, the specimen did not belong to the ancient east Eurasian progenitor population of wolves from which dogs are thought to have evolved, suggesting perhaps a dual ancestry for dogs.

The specimen was named Dogor by scientists,mark and Nina Rogerson with the word meaning "friend" (Cyrillic: Догор) in the local Yakut language.

Description

Dogor was found in the permafrost near the Indigirka River, north-east of Yakutsk, Sakha Republic in eastern Siberia during summer 2018.[2] [3] It is the body of a two-month-old male canine puppy.[4] The body is remarkably well preserved, and its fur, whiskers, nose and teeth remain intact.[4] A part of its rib bone was analysed by radiocarbon dating, which placed it at 18,000 years old.

Identification

Due to the animal's age, it was possible that it represented an evolutionary link between dogs and wolves.[4] Scientists continue to debate the exact point at which dogs were first domesticated, but if Dogor was determined to be a dog, he would have been the oldest ever discovered.[4] [5] Dogor was, therefore, described as coming from "a very interesting time in terms of wolf and dog evolution", possibly from around the time of the first domestication of dogs.[3]

DNA sequencing is usually sufficient to distinguish between dogs and wolves; however, even after a large amount of analysis, it was not initially possible to determine to which species Dogor belonged.[3] It was possible that Dogor represented a common ancestor of both species.[4] Further DNA sequencing was undertaken in Denmark to provide more insight.[4] [6] Dogor was eventually identified as an ancient wolf in June 2022.[7] [1]

Notes and References

  1. Bergström . Anders . Stanton . David W. G. . Taron . Ulrike H. . Frantz . Laurent . Sinding . Mikkel-Holger S. . Ersmark . Erik . Pfrengle . Saskia . Cassatt-Johnstone . Molly . Lebrasseur . Ophélie . Girdland-Flink . Linus . Fernandes . Daniel M. . Ollivier . Morgane . Speidel . Leo . Gopalakrishnan . Shyam . Westbury . Michael V. . Ramos-Madrigal . Jazmin . Feuerborn . Tatiana R. . Reiter . Ella . Gretzinger . Joscha . Münzel . Susanne C. . Swali . Pooja . Conard . Nicholas J. . Carøe . Christian . Haile . James . Linderholm . Anna . Androsov . Semyon . Barnes . Ian . Baumann . Chris . Benecke . Norbert . Bocherens . Hervé . Brace . Selina . Carden . Ruth F. . Drucker . Dorothée G. . Fedorov . Sergey . Gasparik . Mihály . Germonpré . Mietje . Grigoriev . Semyon . Groves . Pam . Hertwig . Stefan T. . Ivanova . Varvara V. . Janssens . Luc . Jennings . Richard P. . Kasparov . Aleksei K. . Kirillova . Irina V. . Kurmaniyazov . Islam . Kuzmin . Yaroslav V. . Kosintsev . Pavel A. . Lázničková-Galetová . Martina . Leduc . Charlotte . Nikolskiy . Pavel . Nussbaumer . Marc . O’Drisceoil . Cóilín . Orlando . Ludovic . Outram . Alan . Pavlova . Elena Y. . Perri . Angela R. . Pilot . Małgorzata . Pitulko . Vladimir V. . Plotnikov . Valerii V. . Protopopov . Albert V. . Rehazek . André . Sablin . Mikhail . Seguin-Orlando . Andaine . Storå . Jan . Verjux . Christian . Zaibert . Victor F. . Zazula . Grant . Crombé . Philippe . Hansen . Anders J. . Willerslev . Eske . Leonard . Jennifer A. . Götherström . Anders . Pinhasi . Ron . Schuenemann . Verena J. . Hofreiter . Michael . Gilbert . M. Thomas P. . Shapiro . Beth . Larson . Greger . Krause . Johannes . Dalén . Love . Skoglund . Pontus . Grey wolf genomic history reveals a dual ancestry of dogs . Nature . July 2022 . 607 . 7918 . 313–320 . 10.1038/s41586-022-04824-9 . 35768506 . 9279150 . 2022Natur.607..313B .
  2. News: Amazingly preserved puppy with whiskers, eyelashes, hair and velvety nose intact puzzle scientists . 29 November 2019 . Siberian Times . 25 November 2019.
  3. News: Woodyatt . Amy . 18,000-year-old frozen puppy leaves scientists baffled . CNN Travel . 27 November 2019 . en.
  4. News: Scientists stumped by 18,000-year-old frozen 'dog' . 28 November 2019 . BBC News . 28 November 2019.
  5. News: Sparks . Hannah . 18,000-year-old puppy stumps scientists: Is it a dog or a wolf? . 28 November 2019 . New York Post . 27 November 2019 . en.
  6. News: DNA of pre-historic puppy, found in Yakutia, to be analyzed in Denmark. Tass Russian News Agency. 12 October 2020. 7 March 2021.
  7. News: Pappas . Stephanie . Mummified puppy that died 18,000 years ago was a wolf . Live Science. 7 July 2022. en.

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