The welfare of invertebrates including bees and other insects is a rapidly evolving scientific area. Understanding what we know and don't know guides the precautionary principle in practice.
The welfare of invertebrates, particularly insects, represents a scientific and ethical frontier with profound implications. If even a modest fraction of the estimated 10 quintillion insects on Earth have rudimentary pain capacity, the scale of potential suffering from pesticide exposure, habitat destruction, and agricultural practices dwarfs that of vertebrate animals. The precautionary principle suggests that as evidence for invertebrate sentience grows, so too should our moral consideration of their interests. Bees in particular show behavioral and neurochemical evidence of emotional states that make their welfare relevant to the way we manage agricultural systems.