Husky puppies were kept
closer to the base until they were old enough and large enough
to join the rest of the dogs on the spans and to be trained
to sled pulling.
Antarctic dogs were bred in Antarctica
with records kept as far as possible to ensure "outbreeding"
so avoiding dogs that were related from breeding and so promoting
inherited problems. Occasionally new dogs were brought in from
Canada or Greenland to add diversity to the gene pool or dogs
would be swapped between bases for the same reason.
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