wolf images in space – colorful space wolf wallpaper


The dire wolf was about the same size as the largest modern gray wolves (Canis lupus): the Yukon wolf and the northwestern wolf. C. d. guildayi weighed on average 60 kilograms (132 lb) and C. d. dirus was on average 68 kg (150 lb). Its skull and dentition matched those of C. lupus, but its teeth were larger with greater shearing ability, and its bite force at the canine tooth was the strongest of any known Canis species. These characteristics are thought to be adaptations for preying on Late Pleistocene megaherbivores, and in North America its prey are known to have included horses, ground sloths, mastodons, bison, and camels. As with other large Canis hypercarnivores today, the dire wolf is thought to have been a pack hunter. Its extinction occurred during the Quaternary extinction event along with most of the American megafauna of the time, including a number of other carnivores,[note 1] that occurred soon after the appearance of humans in the New World. Its reliance on megaherbivores has been proposed as the cause of its extinction, along with climate change and competition with other species, but the cause remains controversial. Dire wolves lived as recently as 9,500 years ago, according to dated remains.
, wolf , free animal wallpapers, wolf 4k, wolves

Wolf
Genomic studies suggest modern wolves and dogs descend from a common ancestral wolf population that existed 20,000 years ago. Studies in 2017 and 2018 found that the Himalayan wolf is part of a lineage that is basal to other wolves and split from them 691,000–740,000 years ago. Other wolves appear to have originated in Beringia in an expansion that was driven by the huge ecological changes during the close of the Late Pleistocene. A study in 2016 indicates that a population bottleneck was followed by a rapid radiation from an ancestral population at a time during, or just after, the Last Glacial Maximum. This implies that the original morphologically diverse wolf populations were out-competed and replaced by more modern wolves.

A 2016 genomic study suggests that Old World and New World wolves split around 12,500 years ago followed by the divergence of the lineage that led to dogs from other Old World wolves around 11,100–12,300 years ago. An extinct Late Pleistocene wolf may have been the ancestor of the dog, with the dog’s similarity to the extant wolf being the result of genetic admixture between the two. The dingo, Basenji, Tibetan Mastiff and Chinese indigenous breeds are basal members of the domestic dog clade. The divergence time for wolves in Europe, the Middle East, and Asia is estimated to be fairly recent at around 1,600 years ago. Among New World wolves, the Mexican wolf diverged around 5,400 years ago.

WolfImages, #WolfBackgrounds, #wolves, #graywolf


Wolf Images, graywolf, WolfBackgrounds, WolfImages

Comments

Post a Comment

Popular posts from this blog

blue sky and black wolf 4k wallpaper

Image
A five-year control program created as a part of the Yukon Wolf Plan ended in 1997 that detailed the extermination of around 80% of the Yukon wolf population within southwest Yukon, specifically around the Aishihik area. This was accomplished by aerial wolf hunting and through the use of snares and traps. Numerous wolves were also surgically sterilized in the years between 1994 and 1997. After recovering the bodies of slain wolves, the pelts were removed and sold. The program was a test on whether decreased wolf population would cause the population of caribou, moose, and Dall sheep to increase. Subsequently, it could be decided that the major limiting factor in terms of the population growth of these species is attributed to predation by the Yukon wolf. The resulting evidence showed that, while the Yukon wolf greatly affected and controlled the population of moose, the survival rate of adult caribou was not affected by the decrease in the number of wolves in the area, nor was the
Read more

cute art wolf background wallpaper

Image
Since 1987, red wolves have been released into northeastern North Carolina, where they roam 1.7 million acres. These lands span five counties (Dare, Hyde, Tyrrell, Washington, and Beaufort) and include three national wildlife refuges, a U.S. Air Force bombing range, and private land. The red wolf recovery program is unique for a large carnivore reintroduction in that more than half of the land used for reintroduction lies on private property. Approximately 680,000 acres (2,800 km2) are federal and state lands, and 1,002,000 acres (4,050 km2) are private lands. Beginning in 1991, red wolves were also released into the Great Smoky Mountains National Park in eastern Tennessee. However, due to exposure to environmental disease (parvovirus), parasites, and competition (with coyotes as well as intraspecific aggression), the red wolf was unable to successfully establish a wild population in the park. Low prey density was also a problem, forcing the wolves to leave the park boundaries in p
Read more

Interior Alaskan wolf wallpaper – cool wolf backgrounds hd

Image
In early 2009, the US Board of Game passed through a plan by the Alaska Department of Fish and Game that allowed ” the state to hire private helicopters to kill wolves.” The plan itself had been given to the Board of Game after the period of public comment has passed, which made it so that the public had no say in the plan or its workings. The Alaska division of the Defenders of Wildlife was outraged over these actions, stating that “the Palin administration and the Board of Game are acting with complete disregard for scientific wildlife management.” A few days later, an abrupt government-sanctioned aerial wolf hunt began in Alaska. It was initiated within only a few hours after the Alaska Department of Fish and Game told the National Park Service that such an effort was going to be undertaken in the area around Tanana. With about 200 wolves being the goal stated for the hunt, more than 30 were killed within the first day, including those that had been radio-collared for research p
Read more