“A ‘tail suspension test’ is exactly what its title implies. Researchers lift a rat by the tail for a few minutes at a time, just to see what it does . . . Antidepressants have been found to increase the ‘try to escape’ to ‘given up,’ ratio, so a common early test for antidepressants is holding rats by tails, stuffing them with antidepressants, and then holding them by their tails again.”
