ron2
Posted : 3/17/2006 6:44:22 AM
I would have replied last night, but my wife was cooking my birthday dinner a few nights early.
[link
http://www.txtwriter.com/Onscience/Articles/familydog.html]www.txtwriter.com/Onscience/Articles/familydog.html[/link]
Wayne's team found 26 different sequences in the control region (of mtDNA).
As in Robert K. Wayne of UCLA. It is his work on canid genetics that led to the species nomenlature change and he is the one who says that, regardless of look, your dog is a gray wolf. That canis lupus familiaris is closely descended from the Gray Wolf. That all other canids are descended from the wolf, even the dingo, canis lupus dingus. I don't know if he's done genetic research on the NGSD to determine if it's canis lupus something and kennelkeeper probably knows.
The family dog is a domesticated descendant of the gray wolf. Differences in the control region (mtDNA) can have an affect. For example, mtDNA comes from the mother. If you have a wolf female mate with a dog, the off-spring will be wolf with wolf-dog appearance. So, let's accept Wayne's proposal that our dog is essentially a wolf even though there is a 1% to 4% difference, with at least part of the 1% being 26 different sequences in mtDNA. Since Mech's name was mentioned for saying, at one point, that wolves do not eat stomach contents and that they are primarily carnivores, recall what I quoted from Mech's own words in the same book, that wolves will also eat plant matter, foraging. So, our dogs, descended from wolves that eat plant matter and have been observed by people other than Mech to eat stomach contents, aren't supposed to do the same because their teeth don't look like an herbivore's? I'll tell that to my dog next time he's eating grass or a wheat cracker.
As for old breeds, such as the Siberian Husky, a breed of 1,000 years. For 1,000 years, the chukchi bred the chukchi dog, which became known as the Siberian Husky. These dogs lived closely with the family, including children, being fed what every was given to them when there was enough of it. The diet was fish, seal, reindeer, and rice. There's not much accessible crops in Northern Siberia, but they traded with other parts of Asia. Secondly, most food was cooked. The average temp in wintertime is around -70 F, with some days as low as -96 F. You have to cook. At -70 F, meat isn't just cold, it's frozen solid.
Archeological evidence shows that dog has been with man for 100,000 years, eating human food waste or whatever was offered. They got nutrition from it well enough to survive as a species and lend themselves to domestication.
IMHO, dogs are omnivores with a strong carnivorous tendency, regardless of their teeth or lack of lateral mastication.
As for someone here with direct experience caring for wild animals, including wolves, kennelkeeper has done such. There are other links to field studies of coyote eating habits by tracking their scat, which is as good an indicator of the amount of plant matter in the diet as blood work and it is easier to collect.