Fig. 3. Carcharhinus amblyrhynchos demographic histories inferred by stairway plot.

Sampled locations are grouped into three different regions, and those with trends distinct from others in their region are labelled. Cocos (Keeling) has been removed due to insufficient sample size. The dashed vertical lines at 40,000 and 90,000 generations ago on the x-axis span the period during which an expansion was inferred across nearly all sampled locations.