Fig. 1
From: Evidence for a postreproductive phase in female false killer whales Pseudorca crassidens
The trend with age in the mean number of corpora atretica (upper plot: mean number per whale in age class ± standard error of the mean), the number of Graafian follicles (lower plot broken line: mean number per whale in age class ± standard error of the mean), the percentage of Graafian follicles that were atretic (lower plot solid line: mean percentage per whale in age class) in false killer whales from South Africa and Japan (n=38)