Some forms of it that cause unnecessary suffering, such as some forms of bow hunting and trapping. Done properly and with due respect, it is a vital service for both people and animals themselves. Hunting helps to keep populations as sustainable levels, that is to say it acts as both a method of culling numbers during overpopulation and motivation for conservation efforts during underpopulation. Not to mention its important role in combating invasive species.

It is also a sustainable and necessary source of food and textiles for rural folk, with the added benefit of requiring a lot less fossil fuels though it is certainly not sustainable for the general population.