Fig 4. Kidney growth occurs by hypertrophy or nephrogenesis in reptiles.
(A-C) Green anole (A. carolinesis) kidney measurements compared to body mass. (A) Scatter plot of kidney mass related to body mass with line of best fit. (B) Scatter plot of estimated glomerular number related to body mass. (C) Scatter plot of the ratio of glomerular number/kidney mass compared to body mass. Number of biological samples = 10. (D-E) Scatter plots of glomerular size compared to body mass in green anole (D) or body length in American alligator (A. mississippiensis) (E). (F) Histology of adult green anole kidney (left) and adult American alligator kidney (right). Arrow denotes zone of nephrogenesis in the American alligator. (g) = grams. (cm) = centimeters.
