Table 1 Summarised results of Benn indices p for all datasets used in the paper. It is clear that human and other animals have different values of p. While p ≈ 3 for young infants is close to p for other animals, the value drops down to p ≈ 2 after one year.

From: Human bipedalism and body-mass index

  species   N p
fish Pale chub (Zacco platypus)   3163 3.1
Korean chub (Zacco koreanus)   997 3.2
Pond smelt (Hypomesus nipponensis)   504 3.0
Bastard halibut (Paralichthys olivaceus)   3077 3.1
whale14 Fin   29 2.9
Sei   27 2.2
mammal15 placental mammals   325 2.9*
3.0
Rodentia   205 2.8
human (children) Sweden <1 year 22710 2.7
>1 year 14992 1.8
Korea <1 year 46070 2.5
>1 year 22919 1.8
WHO19 <1 year 2.5
>1 year 1.9
  1. *Shoulder height, body length.