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Illustration of a Pleistocene wolf cranium that was found in Kents Cavern, Torquay, England [1]. It is widely agreed that the evolutionary lineage of the grey wolf can be traced back 2 million years to the Early Pleistocene species Canis etruscus, and its successor the Middle Pleistocene Canis mosbachensis.
Its genetic diversity was higher than that of its modern counterparts, implying that the wolf population of the Late Pleistocene was larger than the present population. Modern North American wolves are not their descendants, and this supports the existence of a separate origin for ancient and extant North American wolves. [5]
The traditional hypothesis of cetacean evolution, first proposed by Van Valen in 1966, [9] was that whales were related to the mesonychians, an extinct order of carnivorous ungulates (hoofed animals) that resembled wolves with hooves and were a sister group of the artiodactyls (even-toed ungulates). This hypothesis was proposed due to ...
The wolf (Canis lupus; [b] pl.: wolves), also known as the grey wolf or gray wolf, is a canine native to Eurasia and North America.More than thirty subspecies of Canis lupus have been recognized, including the dog and dingo, though grey wolves, as popularly understood, only comprise naturally-occurring wild subspecies.
Reintroduction of wolves. Wolves were reintroduced to the park in 1995, after being driven extinct in the area nearly 100 years ago. It is estimated that approximately 500 wolves are present now ...
In 2023, a genomic study indicates that eastern wolves have evolved separately from grey wolves for the past 67,000 years and had experienced admixture with coyotes 37,000 years ago. The Great Lakes wolves were the result of admixture between eastern wolves and grey wolves 8,000 years ago.
The second newly sighted pack, dubbed the Diamond pack, containing two adult wolves, was seen about 50 miles north of Lake Tahoe. Since last year, biologists watched the pair to see if they met ...
A California gray wolf, dubbed OR 85, in 2023. The wolf was fitted with a satellite collar to help the California Department of Fish and Wildlife track the state's burgeoning wolf population.