Woolly Wolf Seen in Nepal Raises Questions About Its Family Tree. This story has been updated with more details about the genetics of the Himalayan wolf.
Pausing at a clearing, a sudden streak of black against the carpet of white snow moved in the corner of Madhu Chetri's eye. It was 2004, and Chetri, now a Ph.D. student at Norway's Hedmark University College, was trekking through the roof of the world: Nepal's Annapurna Conservation Area. Looking up, he caught the gaze of a wolf, who regarded him with curiosity. “I was struck by these golden yellow eyes. They were so bright. The area had plenty of feral dogs, but Chetri knew right away that this big, woolly creature was no dog. Woolly Wolf Seen in Nepal Raises Questions About Its Family Tree. New Species Of Wolf Discovered In Africa. They’re hard to tell apart unless you look at their genes, but the golden jackals of Africa and those of Eurasia are two completely different species.
In fact, the African animal is actually more closely related to wolves and coyotes. Recent studies using mitochondrial DNA, which is passed on from moms, have suggested that the African golden jackal is a subspecies of the gray wolf, Canis lupus. This is pretty surprising, especially since there are no gray wolves in Africa. So to investigate using genome-wide evidence, Koepfli and colleagues gathered up frozen DNA samples of golden jackals collected two decades ago in Kenya and samples from other parts of Africa, Europe, Asia, and the Middle East.
The Mystery of North America's Black Wolves. Despite their common name, gray wolves are not always just gray.
These canids can also be black or white and the color of their coat is regulated by a complex set of genetic factors. The frequencies of the various coat shades and colors that prevail within a wolf population often vary depending on the type of habitat the wolves occupy. Ancient Wolf DNA Could Solve Dog Origin Mystery. Humans and dogs were constant companions well before our ancestors settled in villages and started growing crops 10,000 years ago, a new study suggests.
Genetic evidence from an ancient wolf bone discovered lying on the tundra in Siberia's Taimyr Peninsula reveals that wolves and dogs split from their common ancestor at least 27,000 years ago. "Although separation isn't the same as domestication, this opens up the possibility that domestication occurred much earlier than we thought before," said lead study author Pontus Skoglund, who studies ancient DNA at Harvard Medical School and the Broad Institute in Massachusetts. Previously, scientists had pegged the wolf-dog split at no earlier than 16,000 years ago. Dogs skulls show astounding variety in shape. Wolf In Dog's Clothing? Black Wolves May Be First 'Genetically Modified' Predators. Slipping through trees or across snow, the wolf has glided into legend on paws of white, gray or — in North America — even black.
This last group owes an unexpected debt to the cousins of the domestic dog, say Stanford researchers. In an unconventional evolutionary twist, dogs that bred with wolves thousands of years ago ceded a genetic mutation encoding dark coat color to their former ancestors. What is the Difference Between Red Wolves and Coyotes? - 01/23/2008. Kyle Waggener is the Director of Education/Lead Naturalist for the Chattanooga Nature Center Red Wolves and Coyotes are very closely related and in fact share a recent common ancestor.
The two species do hybridize and produce fertile offspring. It is usually impossible to distinguish between a Coyote – Red Wolf hybrid and a Red Wolf just by looking at it. Wildlife Biologists that work with the only known wild population of Red Wolves at Alligator River National Wildlife Refuge in North Carolina have to do DNA tests to be sure. Molecular and Evolutionary History of Melanism in North American Gray Wolves.
Wolf in dog's clothing? Stanford study reveals twist in fur color evolution. STANFORD, Calif. - Slipping through trees or across snow, the wolf has glided into legend on paws of white, gray or - in North America - even black.
This last group owes an unexpected debt to the cousins of the domestic dog, say Stanford researchers. In an unconventional evolutionary twist, dogs that bred with wolves thousands of years ago ceded a genetic mutation encoding dark coat color to their former ancestors. Wolf In Dog's Clothing? Black Wolves May Be First 'Genetically Modified' Predators. Slipping through trees or across snow, the wolf has glided into legend on paws of white, gray or — in North America — even black.
Coyote-Wolf Hybrids Have Spread Across U.S. East. Hybrid offspring of coyotes and wolves have spread south along the eastern seaboard, a new DNA study confirms. Scientists already knew that some coyotes, which have been gradually expanding their range eastward, mated with wolves in the Great Lakes (map) region. The pairings created viable hybrid offspring—identified by their DNA and skulls—that have been found in mid-Atlantic states such as New York and Pennsylvania. Skull variation in Dinaric–Balkan and Carpathian gray wolf populations revealed by geometric morphometric approaches.
Aspi, J., et al 2009.
Genetic structure of the northwestern Russian wolf populations and gene flow between Russia and Finland.Conservation Genetics 10:815–826. CrossRef Barrow, E. and N. Macleod. 2008. Shape variation in the mole dentary (Talpidae: Mammalia).Zoological Journal of the Linnean Society 153:187–211. Bibikov, D. New Clues To Extinct Falklands Wolf Mystery. Ever since the Falklands wolf was described by Darwin himself, the origin of this now-extinct canid found only on the Falkland Islands far off the east coast of Argentina has remained a mystery.
Researchers find first evidence of Ice Age wolves in Nevada. A University of Nevada, Las Vegas research team recently unearthed fossil remains from an extinct wolf species in a wash northwest of Las Vegas, revealing the first evidence that the Ice Age mammal once lived in Nevada. The metapodial, or foot bone, was uncovered late last year by UNLV geologist Josh Bonde during a survey of the Upper Las Vegas Wash. They have now confirmed that the bone comes from a dire wolf. The discovery site is near the proposed Tule Springs Fossil Beds National Monument, a fossil-rich area known for its diversity and abundance of Ice Age animal remains. Scientists estimate the fossil to be 10,000 to 15,000 years old during the Late Pleistocene period.
DIRE WOLF. Here is the story of the first known dire wolf - Late in the summer of 1854 Francis A. Linck obtained a fossilized jawbone from the bed of the Ohio River, then averaging some eleven feet lower than today, near the mouth of Pigeon Creek and a short walk from downtown Evansville, Indiana. Biologists suspect wolf inbreeding on Isle Royale affecting population. No wolf pups were counted on Isle Royale this winter, leading biologists to question whether inbreeding in the small population is affecting reproduction.
“This is the first year since 1971, the year reproduction first began being monitored, that we did not detect any sign that pups had been born during the past year,” John Vucetich, Michigan Technological University population biologist, said in the school’s 2012-13 Isle Royale study released this week. Researchers counted eight wolves, down one from last year, on the Lake Superior island located north of the Upper Peninsula’s Keweenaw Peninsula. The Isle Royale wolf population began with one female and two male wolves that arrived on the island more than a half-century ago. The population is highly inbred, which is causing spinal anomalies in the wolves and likely other physical or physiological affects, according to researchers.
Clues to Origins of Falkland Islands Wolf. Bucking the Trend in Wolf-Dog Hybridization: First Evidence from Europe of Hybridization between Female Dogs and Male Wolves. Studies on hybridization have proved critical for understanding key evolutionary processes such as speciation and adaptation. However, from the perspective of conservation, hybridization poses a concern, as it can threaten the integrity and fitness of many wild species, including canids. Molecular and evolutionary history of melanism in No... [Science. 2009. Gray Wolf Evolution. What Makes a Wolf a Wolf? Have you ever looked around and wondered how so many different animals can all be related? In fact, scientists believe that all animals—and all forms of life—share a common ancestor. Genetics Show Eastern Wolves Are Coyote Hybrids. A new genetic study finds that wolves in the eastern United States and Canada are actually hybrids of gray wolves and coyotes, while the area’s coyotes are wolf-coyote-dog hybrids, according to a recent Associated Press (AP) report.
Molecular evolution of the dog family. Dogs, Jackals, Wolves, And Foxes : a Monograph of the Canidæ by Mivart, St. George Jackson, 1827-1900 online reading at ReadAnyBook.com. Conservation Genetics Volume 9 issue 4 2008 [doi 10.1007%2Fs10592-007-9413-0] Lindsey E. Carmichael; Julia Krizan; John A. Nagy; Mathieu Dumon. Rapid adaptive evolution of northeastern coyotes via hybridization with wolves. Skip to main page content Biology Lettersrsbl.royalsocietypublishing.org Published online before print 23 September 2009 doi: 10.1098/rsbl.2009.0575 rsbl20090575 + Author Affiliations. Genetic Study Points to Recent Wolf-Dog Hybridization in Caucasus.