The dogs had to pull the sled
Francois and Perrault are both agents of the Canadian government.
Perrault and Francois are Canadian Government couriers. Their job is to get from point a to point b as fast as they can.
Because
Because they were being reassigned by the Canadian government.
Perrault and Francois are mail carriers
yes
Yes they are.
Perrault is a courier for the Canadian Government, so his job is to deliver mail and stuff. He needed to get from place to place quickly and safely.
they were hard working but fair always made sure the dogs had food in their belly and a good night sleep
Either Francois or Perrault
b'cuz they have clubs that could hurt buck
Francois & Perrault discovers that spitz is missing and the signs of battle on buck's body are the proof that the inevitable battle between buck and spitz has occured and that buck is the winner.