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Another example of divergent evolution is the origin of the domestic dog and the modern wolf, who both shared a common ancestor. [15] Comparing the anatomy of dogs and wolves supports this claim as they have similar body shape, skull size, and limb formation. [16]
A study of dog remains indicates that these were selectively bred to be either as sled dogs or as hunting dogs, which implies that a sled dog standard and a hunting dog standard existed at that time. The optimal maximum size for a sled dog is 20–25 kg based on thermo-regulation, and the ancient sled dogs were between 16 and 25 kg.
Domestication has been defined as "a sustained multi-generational, mutualistic relationship in which one organism assumes a significant degree of influence over the reproduction and care of another organism in order to secure a more predictable supply of a resource of interest, and through which the partner organism gains advantage over individuals that remain outside this relationship ...
Dogs may be entering a new wave of evolution as humans’ need for companionship grows. Image credits: Jamie Street / Unsplash. A study concluded that oxytocin is the “love” hormone that ...
Dogs: Their Fossil Relatives and Evolutionary History is a book by Xiaoming Wang and Richard H. Tedford.It was published in 2008 by Columbia University Press.The book offers a "holistic picture of canid evolution" and an overview of existing and extinct taxa, also detailing the evidence for the domestication and evolution of domestic dogs from their wolf ancestors. [1]
One authority has classified the Paleolithic dog as Canis cf. familiaris [1] (where cf. is a Latin term meaning uncertain, as in Canis believed to be familiaris).Previously in 1969, a study of ancient mammoth-bone dwellings at the Mezine paleolithic site in the Chernigov region, Ukraine uncovered 3 possibly domesticated "short-faced wolves".
Homology thus implies divergent evolution. For example, many insects (such as dragonflies) possess two pairs of flying wings. In beetles, the first pair of wings has evolved into a pair of hard wing covers, [12] while in Dipteran flies the second pair of wings has evolved into small halteres used for balance. [b] [13]
After the final Divergent film’s 2016 debut, many of the franchise’s stars have gone on — or continued — to have very successful acting careers. Based on Veronica Roth’s book series of ...