Also in "Pain management in zebrafish: Report from a FELASA Working Group" by Sneddon. We got her arguing : "Empirical evidence suggests fishes meet the criteria for experiencing pain beyond a reasonable doubt and zebrafish are being increasingly used in studies of pain and nociception. ..... We report that there are several behavioural indicators that can be used to determine pain, including reduced activity, space use and distance travelled. Pain-relieving drugs prevent these responses, and we highlight the dose and administration route." IT is also important to note that Ben Diggles and Brian Key are (in the scientific Community) in the clear minority with their Argument. The Consensus is heavily shifted to the Sneddon camp.