BMR as function of body mass in principal groups of endotherms A original regressions B regression normalised at common slope 0.7248 and the lines are drawn in accordance with the size range of the group.

 
 
  Part of: Gavrilov VM, Golubeva TB, Bushuev AV (2023) Metabolic rate, sleep duration, and body temperature in evolution of mammals and birds: the influence of geological time of principal groups divergence. ZooKeys 1148: 1-27. https://doi.org/10.3897/zookeys.1148.93458