Figure 1: Global Distribution of Barium Levels in Female Sperm Whales. This figure shows the global distribution of mean Ba levels in 193 adult female sperm whales grouped by sampling region. 1No female whales were found in the Chagos, Galapagos or Indian Ocean regions; 2Specific regions are named for the nearest land body or ocean region; 3All data are presented in ug total Ba/g tissue wet weight +/- standard deviation. There were no statistical differences among regions at a significance level of p = 0.05.