EFSA has just issued the last in a series of three Scientific Opinions concerning the welfare of farmed pigs. The latest report focuses on the problem of tail-biting (a distressing form of abnormal behaviour that is known to occur in intensive farming conditions) and on possible ways to reduce the need for tail-docking which farmers can use to tackle the problem. The Opinions identifies factors that can cause the problem including the absence of straw, the presence of slatted floors and a barren environment.