The answer to this question would be: foraging and <span>protection
Cooperative hunting needs a big amount of number. It also poses a danger to the member as the animal you hunt can fight back. If you only herding, the amount of the people can be used for foraging or even protecting the worker.
Division of labor can be done in hunting too. Aerodynamic and hydrodynamic efficiency is used when bird or fish doing the migration. Their formation can make less energy used when moving in big number compared to when they moving alone.</span>
its the Having less deer would increase the mountain lion dependency on rabbits, which would lead to fewer rabbits available for the hawks. but it might be the first one
