1 Introduction
2 Defining Welfare Ranges
3 Are All Welfare Ranges the Same?
4 The (Un)Reliability of Intuitions
5 Using Neuron Counts to Estimate Welfare Ranges
6 Differences in the Intensity of Valenced Experience across Species
7 A Methodology for Estimating Differences in Welfare Ranges
8 Some Tentative Welfare Range Estimates
9 Objections, Recommendations, and Conclusions