Animal welfare is ultimately grounded in ethical values about what we owe animals, and making these values explicit strengthens welfare advocacy.
Animal welfare science provides evidence about animal states but values determine what those states mean for how we should treat animals. Different value frameworks lead to different welfare priorities: utilitarian approaches focus on minimising total suffering; rights approaches emphasise the inherent value of individual animals; care ethics centres relationships and responsibilities. Making these value differences explicit in welfare advocacy strengthens rather than weakens the case for welfare improvement, because it enables engagement with the full range of value frameworks that different audiences bring to animal welfare questions. Welfare progress requires both scientific evidence about animal experience and moral argument about why that experience matters.