Our evolving insight into the pain fish feel | Letters

Neil Macfarlane says there is now more widespread acceptance that fish do feel pain. Rev David Haslam hopes Waitrose’s vegan and vegetarian meals are going to be packaged differentlyThe debate about fishes’ ability to perceive pain (The long read, 30 October) has arisen at various times in past decades, generally prompted by public concerns about angling practices, industrialised fishing, and, more recently, intensive salmon farming.Advances in neuroscience and behavioural techniques