Dog ancestors
Ancestor is the wolf dog, even after ten thousand years of keeping
with the domesticated, but their genes, the original still retains
many of the habits of the wolf, and gregarious. Sociality is one
of them. Wolf is solitary animals, they are usually seven. 8 as
a group, collective approach to hunting prey, which are each wolf
in the group not in the same class status; zoologists used to being
the leader of wolves known as the alpha wolf, ethnic groups, including
food distribution, disputes settled, and even the responsibility
of breeding future generations, we must relied; the rest of the
wolf are also satisfied itself of the status of ethnic groups, and
to obey the leadership of Alpha wolf, and this is the wolf society.
then dog how is it? although after a long period of evolution, but
the dog still retain the nature of these wolves, but the object
has the same gregarious expanded to keeping their people. at home,
each family dog as one ethnic group among intellectuals, with us
living together, with games, along with hunting (walk out). In common
with the human life time, the dog has been astute in our unconsciously,
for their own at home.
Dog's ancestors were wolves in East Asia
Scientists from Europe, Asia, Africa and North America hundreds
of dogs to carry out DNA analysis found that all the world's dog
genes have similar gene sequences, so they concluded that all the
world's home dog are about 1.5 million years ago, from the East
Asian wolf evolved. These dog's ancestors and the earliest settlers
in the Americas through the Bering Strait, through Asia and Europe
work together to reach the Americas.
Sweden and China's scientists have for the dog 654 genes have been
studied and found the dog in East Asia has a strong genetic diversity,
This shows that East Asia is one of the first people to tame the
wolf into the dog.
The research results were published in the latest "Science"
magazine, the leading researcher of the study, from the Swedish
Royal Institute of Technology Peter said very little evidence of
mankind in accordance with an initial guess from the dog's ancestors
the Middle East, because in the Middle East some archaeological
discoveries have proved that many animals are in the area was tame.
The United States, Latin America and the Swedish study, researchers
found that in the European settlers came to America before the 15th
century, and East Asia have similar gene wolf dog has emerged in
the Americas. This shows that the first batch in 1.2 to 1.4 million
years ago through the Bering Strait to reach the Americas was carrying
settlers to tame the dog came to the Americas.
USA and Russia researcher at Uppsala University said the dog's
presence can be explained, why the American continent, settlers
spread relatively fast speed.
The studies, when the dog is domesticated from the wolf from this
issue there is disagreement between the initial discovery in Germany
of the dog mandible has about 1.4 million years of history, Sweden
and Chinese scientists consider the study group, DNA analysis and
archaeological findings together show that the dog was domesticated
is 1.5 million years ago |