Research has revealed surprising cognitive complexity in sheep, with implications for how we understand their capacity for suffering and the welfare standards they deserve.
The cognitive complexity of sheep challenges common assumptions about their welfare needs. Animals that form long-term social bonds, recognise individuals across years, and respond to emotional expressions in others are likely to experience social separation as genuinely distressing rather than merely inconvenient. Welfare standards that permit chronic social isolation or frequent mixing of unfamiliar sheep groups impose costs that the animals' social cognition makes more significant than previously understood.