Scientific evidence for insect sentience and pain capacity is growing, raising important questions about the welfare of the billions of insects affected by human activities.
Insect welfare represents one of the most significant and most neglected frontiers in animal protection. The sheer number of insects affected by human activities - agriculture, pesticide use, habitat destruction, and increasingly commercial farming - dwarfs that of vertebrate animals. While uncertainty about insect sentience is genuine and the evidence is less definitive than for mammals and birds, the precautionary principle suggests taking potential insect suffering seriously. Practical implications include reconsidering pesticide use patterns, considering welfare standards for commercial insect farming, and maintaining habitat that supports insect populations.