Digging a bit deeper, this is what Craig Packer has to say:
He and three other researchers found that when predators hunt in packs, it actually reduces the impact they have on prey populations.
Many people have misconceptions about how lions hunt, Packer said. One lion usually brings down the prey and then has to share the meal with the rest of the pride.
Packer found that if predators hunted individually and spread out over a territory, they would kill more prey and be more efficient hunters.
This information could be applied to wolf packs in the United States, said John Fryxell, an integrative biology professor from Guelph University who was a co-author of the paper.
Fryxell said if game managers want to ensure populations of animals like elk and deer, they might have to rethink some of their strategies.
Culling a few wolves from a pack would only make the pack more successful because they wouldn't have to share as much food, Fryxell said. Wolves hunting individually could overrun a prey population.
"We need to be more careful about not disrupting social units," he said.
While I agree that this is indeed the case with lions, I'm not too sure about wolves. I haven't found any actual studies that question their cooperative hunting, and plenty of other canines hunt in packs (dholes, African wild dogs, bush dogs, etc.), where as lions are held up as an exception among felines. Still, food for thought on a heatedly debated topic.