Crab

Until recently, many researchers believed the crustacean nervous system was too primitive to process pain. | The last time you splurged on a live lobster for dinner, you might not have given any thought to how much the little guy was going to suffer as he boiled to death. | And they found that crabs that experienced an electric shock when they hid under a safe, dark rock would eventually learn to avoid the hiding place. | Scientists at Queen's University in Belfast now think that crustaceans may be more sensitive to pain than previously thought.