What emerging welfare science means for the rapidly growing insect farming industry.
Insect welfare presents a unique ethical challenge because the probability of sentience varies across species, and our uncertainty is genuine rather than merely convenient. The precautionary principle — taking welfare seriously under uncertainty — is increasingly accepted in scientific and policy circles. For insect farming, this means caring about stocking densities that prevent abnormal crowding behavior, substrate quality that supports natural life stages, temperature management that minimizes stress, and slaughter methods that minimize any potential suffering. The aggregate scale of insect production gives urgency to this question: if insects have any morally relevant experiences, the insect farming industry represents one of the largest welfare challenges in existence.