With both my children
now living separately from me, I am alone most of the time, except for my two lovely dogs. One is half Labrador and the other is pure. Such difference
bestowed on them different traits.
The half breed loves
her head to be touched and fondled while the pure loves her belly tickled. And
I cater to their desires each time I take a computer break.
Never does it enter
into my mind that their ancestors, thousands of years ago, would have easily
bitten my fingers and hands off, even tear me to pieces without the slightest provocation.
So how, when and
where did the wilderness wolves find their way into our homes as dogs, into our
doting attention and affection?
So many theories
abound. And just like any theory, there are adherents and opponents.
According the Dr. Carles Vila, from the Conservation and Evolutionary Genetics Group a the Donana
Biological Station in Seville, Spain, both camps are still in a debate in this
aspect of wolf-to-dog evolution
He theorized that this
evolution was not a one-shot deal but a multiple process of wolf to dog, dog to
wolf and so on, until wolf and dog, due to their natural differences permanently
delineated from each other – the wolves opting to live in the wilds, and dogs
in our homes.
When this happened is
uncertain except that scientists have a hard time finding wolf, cum dog, bone
fragments older than 14,000 years ago.
Genetic comparison
done by scientists, led by Dr. Axelsson, between wolves and dogs showed that
dogs showed two major functional genes in dogs that are not as pronounced in
wolves. These are the genes involved in starch metabolism and brain
development.
This finding bolsters
the theory that dogs emerged from wolves in the garbage dump created by
primitive human settlements. From rummaging through the carbohydrate-laden
leftovers of man, wolves became more efficient in metabolizing starch – and to
live close with man.
As far as brain
development genes are concerned, this is thought to explain the behavioral
differences between wolves and dogs. As a consequence of developing a working
relationship with man, dogs have become more docile and friendly.
For their constant
belligerence and suspicion of man, wolves were treated reciprocally and more.
When humans arrived in Europe more than 43,000 years ago, they practically
eliminated all carnivores including saber-tooth cats and giant hyenas.
By the order of Henry
VII, the last wolf was killed in England in the 16th century and the
Scots, rather than hunt wolves, burned their forested habitats. By 1930, there
was no wolf left in the 48 contiguous states of America.
For people like me, we
don’t hassle too much how wolves became domesticated. We are just too happy and content that some of them did. I would not have my dogs to pat on the head or
tickle the belly if they did not.
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