|Barked: Fri Mar 14, '14 6:14am PST |
|I missed the "inline" part. But in case it wasn't obvious enough for you, NO, a dog can NOT do what you are looking for. Regardless of breed, surface, or climate.
Those temperatures are way too extreme - we stop the sled dogs around 50F, and even running that hot depends on other factors like the humidity, if there is snow on the ground, if the sun is out. I have seen dogs start to overheat and need to be pulled from the team in around 20F. Not often, but it happens. We aren't in the Arctic, either. Many of the dogs are sprint-oriented Eurohounds, not Huskies acclimated to -50F.
Also worth noting that entire discussion is about RUNNING, not skating, which is often done with dogs (see cani-cross) as long as conditions are correct. The participants offer only anecdotal evidence, and appear to be multiplying what small distances their dog covered quickly to greater distance and using that for speed - which is completely wrong. Any dog can beat the fastest human sprinter right out of the gate, but they can not maintain that speed over any significant distance.
FWIW, as the fact that race sleddogs are pulling a sled kept coming up - it's not slowing them down much at all. They train pulling trucks. A sled is nothing after that. Yes, being hooked together slows the faster dogs, but that's a good thing. If you let your fast dogs go all-out, they completely burn themselves out on the first stretch.
Believe me, if there were a way to get dogs to run faster than that, the sledding community would have figured it out a long time ago.
Also, wolves absolutely do not run down their prey. They trot or jog long distances to find it, and will sprint to reach it after stalking as close as possible. Typically they will set the pack up to surround the animal so it can't get away, because most prey animals can easily outrun them - and they still run failure rates as high as 90%. The people implying that wolves just race around the tundra, flat-out running down large prey have no idea what they are talking about.
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