Plot of EE vs total mass for 4 body mass groups (small, 14.00–20.75 g; medium, 20.75–27.50 g; large, 27.50–34.25 g; largest, 34.25–41.00 g) (A). Relationship between the group with large masses is significant from small mass and medium mass groups. No other group relationships are significant. EE vs lean mass (small, 8.70–13.92 g; medium, 13.92–19.14 g; large, 19.14–24.36 g; largest, 24.36–29.60 g). No group relationships are significant. (B). *, p<0.05. n = 6469 males and 2889 females.