data

Codebook:

• animal = animal name
• body = body weight in kg
• brain = brain weight in g

Source: MASS R package

References:

• Weisberg, S. (1985) Applied Linear Regression. 2nd edition. Wiley, pp. 144–5.
• Selected from: Allison, T. and Cicchetti, D. V. (1976) Sleep in mammals: ecological and constitutional correlates. Science 194, 732–734.