28. Flies, Mosquitoes, and Cockroaches Show Pain Criteria
Studies reveal that flies, mosquitoes, and cockroaches display behaviors meeting many scientific criteria for pain perception.
These insects actively avoid harmful stimuli, learn from negative experiences, and sometimes seek relief after injury.
This evidence is challenging the long-held belief that invertebrates are incapable of feeling pain.
As research progresses, our understanding of insect sentience may reshape how we view—and treat—these abundant creatures.