Dog Domestication: Did The Wolf Tame Itself To Eventually Evolve Into The Dog?

Popular thinking has it that the humans domesticated the wolf about 15,000 years ago in the Mesolithic period when permanent settlements were becoming all the rage. In theory this sound good and well after all the dog is a descendant of the wolf and indeed the two canids (both come from the family Canidae) can interbreed. In fact it is on this basis that some argue that the dog is really a subspecies of the wolf. Although it is instinctive to assume that man did indeed tame the wolf which tamed animals then eventually evolved into the domesticated dog, there is a gaping flaw in this theory! The flaw is that this theory assumes that Mesolithic humans had the time or the intelligence to invest in a selective breeding program that aimed to create a tamer wolf; this would have necessarily meant that those people had hundreds of tame wolves with which to select desired traits from…a notion that is simply preposterous!

Click Below For Full Article

Dog Domestication

Dog Evolution

Around 54 to 38 million years ago a new line of meat-eating mammals evolved. They became known as the carnivores and were distinct from all other meat eaters for the fact they possessed a unique feature – four carnassial teeth. Only carnivorous mammals possess teeth that adapted from a crushing chewing mechanics to a tearing and ripping mechanism facilitating cutting through flesh.

Modern day carnivores are believed to have evolved from two separate ancestral lines at some point:

1. Hesperocyon which habited North America 38-26 million years ago. This was perhaps the first genus to have developed an inner-ear anatomy a feature characteristic of the canine family.

2. Amphicyon which dominated the Eurasian continent for millions of years inter-lapping the same time frame as Hesperocyon. However somewhere along the line it is believed that the Amphicyon line died out.

Around 26-7 million years ago during the Miocene era Hesperocyon evolved into 42 different genera of canines with dog-like features of which Leptocyon (12 million years ago) an evolutionary descendant of Hesperocyon eventually evolved into the Canidae from whence came the modern canids which include wolves, foxes, jackals and hyenas.

Interestingly enough up until 10-20 million years ago bears and dogs were actually members of the same family before their evolution diverged to continue along separate paths. The ancestors of dogs are known to have evolved in response to climatic changes as well as changes to the environment. As tropical forests were superseded by vast areas of wide open savannah and steppes, so came into being the large herds of herbivores that are still present today in Africa.

Where beforehand the dog may have been a solitary hunter with the change in the environment it became expedient for the dog to evolve into a pack animal with a well formed social stratum. In this way dogs were able to successfully hunt and tackle the much larger prey that was characteristic of the grazing herds of herbivore. This pack mentality is still evident in the domestic dog as witnessed by roving packs of stray dogs in urban areas.

It is this innate ability of dogs to develop social relationships (inherited from wolves from which the domestic dog was bred) that is the basis of their success as a species!


Dog Breeds