Animal welfare science is a rapidly growing discipline that provides the evidence base for welfare improvement. Understanding how it works helps advocates, producers, and policymakers apply it effectively.
Animal welfare science is the foundation on which credible welfare standards, practical interventions, and policy recommendations rest. The discipline has transformed our understanding of which animals have morally relevant experiences, what conditions compromise their welfare, and which interventions effectively improve it. Science-based welfare assessment — using validated animal-based measures of health, behaviour, and physiology rather than purely input-based standards — enables honest evaluation of outcomes rather than reliance on process compliance. Supporting the welfare science community through funding, engagement with findings, and applying evidence-based approaches in policy and practice is essential to the long-term project of reducing animal suffering at scale.