And what follows are some notes or thoughts about that.
They begin with a discussion of how wolves became dogs, and does this great cinematic thing where they say, "What made tame wolves?" Garbage. And they show a panoramic view of a modern-day landfill dump where dogs are everywhere, scavenging for food, alongside humans, under a dark cloudy sky. It's really quite lovely. And then Ray Coppinger talks about how the wolves with the lowest flight distance would have been at an advantage to picking up the meat bits and human waste that people had to dispose of once they decided to start living in settlements.
Ray Coppinger talks about the previous idea that maybe humans just kept wolf puppies and tried to domesticate them. The idea that humans just walked in and took wolf puppies. . . this is great. I mean if you really think about, this is absurd. Have you ever tried to steal a baby from its mother? You can't even get between a housecat and her kittens without sustaining injuries, and we're talking about a 180lb(?) killing machine with razor teeth? If early hominids knew anything, it was how to interpret the signals of nature. And even if there was one guy who thought it was a good idea to try and tame a wolf puppies, im pretty sure the whole rest of the community would have treated him like people today do when someone in their neighbhorhood keeps an alligator in a pen in their basement. They totally steer clear of that guy and speculate about when he's going to get eaten alive. And they won't let their kids go anywhere near that house. Keeping an exotic, danger pet would probably get someone ostracized for the safety of the community. Say you could manage to escape with both your arms with a wolf puppy; its mother will just track you down and kill you in your sleep in order to get it back. Maybe by some luck you stumbed upon a nest of orphan wolf pups whose entire pack perished in a freak cliff accident. If you managed to raise it to adulthood, it still might rip your face off in a vy for alpha male as soon as you showed signed of weakness. Even today, people who have wolves as pets are spontaneoulsy attacked after years of companionship without incident.
Looking back. Like so many outdated theories of science, the questions and suppositions seem ridiculous. "Why would humans have selected for that coat color" etc. "They were really very silly questions" says Raymond Coppinger.
They suggest that, without dogs, we would have never domesticated sheep or goats (because their native habitats are these really mountainous, dangerous places that humans totally couldn't go). There is a big difference between hunting these animals, and sheparding them, they said.
Inuit people talked about how the dogs make it possible for them to be there at all -- because they run the equivalent of 5 marathons a day, can sense unsafe places in the ice (where a human would die within seconds, but a dog can just hop out of and shake it off :)), sled dogs will fight a polar bear and run underneath of it, etc. and be fine.)
Part 2
The second part of this DVD takes a shift and talks about the profusion of dog breeds that accompanied the last century or so. They talked about how the Victorian era was the first time the dogs were really bred for what they looked like (well, they got these Pekenese dogs from China after the English stormed the Chinese royalty and took the last 5 of the royal dogs that were not slaughtered to protect them from falling into foreign hands home with them, where they became a sensation.) Victorians with too much time on their hands fiddled with breeding to try and get puppy-like toy dogs . . . "dog fancy" and lap dogs.This is really a major shift, though, because as soon as we started picking characteristics soley on aesthetics, we run into all these problems with dogs that can't breathe and have hip displasia and bad backs . . .
Also it said that we went from 40 breed types to over 400 with the Victorian age.
Note: bull dogs were bred for butcher shops to "pin down wayward cattle" :)
I just understood something! So, I was saying to Melissa the other day that I thought it was amazing that all that variation in dogs could be in the dog genome. But its not! Or at least not all of it. The minute variations that developed into exaggerated breed differences often come from MUTATIONS in the genome, which are then expanded/exploited through inbreeding (or "line breeding" as breeders call it) in order to increase the liklihood of recessive traits.) This might be another classic example of "Maria, how did you not know this already?!" but there you have it.
This movie talked about one idea for the different sizes of dogs coming from their rate of maturation as regulated by a particular hormone, the patterns for which is determined by the mother's pituitary gland. so the giant dogs (great dane, for example) actually matures slower than a tiny dog.
Interesting note: rat terriers (all terriers) are bred to kill. that's what their job was. They have strong necks capable of shaking a thing to death in one shake, and they are little so poor farmers didn't have another huge mouth to feed.
Also, it talks about how the relationship between working dogs and humans is no longer the normal way it is, and that companionship or pets are more likely . . . says it in sort of a wistful way and that we have forgotten what these dogs really are and what their purpoes might have been, or what's in their make-up (herding, hunting, killing). This makes me a little sad too and makes me think about the dignity of work for humans if there is somthing akin to that for dogs -- that they are bred to work or to be our working companions and they mght not feel satisfied in their lives without fullfilling those genetic fates. Hmmm.