Fig. 2From: Evidence for a postreproductive phase in female false killer whales Pseudorca crassidens Numbers of old corpora albicantia (a), and medium (open circles) and young (solid circles) corpora albicantia (b) in 102 mature female false killer whales of different ages from Japan and South Africa. The count of corpora albicantia has been jittered in (b) for plotting purposesBack to article page