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The dog diverged from a now-extinct population of wolves 27,000–40,000 years ago immediately before the Last Glacial Maximum, [ 1 ][ 2 ] when much of the mammoth steppe was cold and dry. The domestication of the dog was the process which led to the domestic dog. This included the dog's genetic divergence from the wolf, its domestication, and ...
Description. Diagram of a wolf skull with key features labelled. The Paleolithic dog was smaller than the Pleistocene wolf (Canis c.f. lupus)[1] and the extant grey wolf (Canis lupus), with a skull size that indicates a dog similar in size to the modern large dog breeds. The Paleolithic dog had a mean body mass of 36–37 kg (79–82 lb ...
Divergent evolution or divergent selection is the accumulation of differences between closely related populations within a species, sometimes leading to speciation. Divergent evolution is typically exhibited when two populations become separated by a geographic barrier (such as in allopatric or peripatric speciation) and experience different ...
Canidae (/ ˈkænɪdiː /; [ 3 ] from Latin, canis, " dog ") is a biological family of dog-like carnivorans, colloquially referred to as dogs, and constitutes a clade. A member of this family is also called a canid (/ ˈkeɪnɪd /). [ 4 ] The family includes three subfamilies: the Caninae, and the extinct Borophaginae and Hesperocyoninae. [ 5 ]
However, the divergence was a much greater 8.0% between gray wolf (C. lupus) mtDNA and eastern/red wolf haplotypes, and 10.0% between gray wolf and coyote haplotypes. The sequence difference observed between eastern Canadian wolf sequences and coyote sequences is consistent with a separation of 150 000 – 300 000 years, using a divergence rate ...
In biology, evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms ' observable traits. Genetic changes include mutations, which are caused by damage or replication ...
The first debates about the nature of human evolution arose between Thomas Henry Huxley and Richard Owen. Huxley argued for human evolution from apes by illustrating many of the similarities and differences between humans and other apes, and did so particularly in his 1863 book Evidence as to Man's Place in Nature.
Interbreeding between archaic and modern humans. Map of western Eurasia showing areas and estimated dates of possible Neanderthal–modern human hybridization (in red) based on fossil samples from indicated sites. [ 1 ] Interbreeding between archaic and modern humans occurred during the Middle Paleolithic and early Upper Paleolithic.