Evidence is mounting that insects may indeed feel pain, and a new study has just added to the pile. A team from the University of Sydney in Australia has recorded proof that the seemingly simple house cricket – an insect we already know has the equipment necessary to feel pain – protects and grooms its antennae after being poked with a hot probe. It's really difficult to assess pain experience: Even in humans, pain is so subjective that the most direct measure is asking the person to rate it ,