Figure 1

Cardiac growth from embryonic age to juvenile or adult age in Red Junglefowl (Gallus gallus) in red, Chilean Tinamou (Nothoprocta perdicaria) in green, Ornate Tinamou (Nothoprocta ornata) in blue and American alligator (Alligator mississippiensis) in black. Power regression lines for each species were obtained after logarithmic transformation and Model II analysis (orthogonal regression) in Minitab 17. The power regression equation are as follows: Gg: VM = 0.0085 BM^0.892; Np: VM = 0.0186 BM^0.688; No: VM = 0.0207 BM^0.649; Am: VM = 0.0117 BM^0.737.