What strategy do the wolves use to kill caribou in Julie of the Wolves?

The wolves killed caribou by closing in on them.

At one point in the story, Miyax states, “They’re chasing the weakest… It’s just like Kapugen said- wolves take the old and sick.”

During a particular kill, Amaroq jumped and “sank his teeth” into the shoulder of a caribou. As Amaroq used his teeth to hang onto the animal, Silver attacked the caribou from the side. The caribou tried to defend himself by aiming his hoofs at Amaroq’s head. However, Amaroq jumped high into the air and “sunk his teeth in the animal’s back” a second time. Amaroq used his teeth and the weight of his body to ride the caribou. At this point, Silver leapt in front of the caribou and tripped the bull. Meanwhile, Nails gripped the hind leg of the caribou. At this point, the caribou fell to its knees and stumbled to a final defeat.