Figure 6: Water saturation experiment.
From: Selection for Oil Content During Soybean Domestication Revealed by X-Ray Tomography of Ancient Beans

A water-saturated soybean seed was charred and CT-scanned. Normalized hole volumes were split into three categories: Small (1E-7 order), Medium (1E-6 order) and Large (1E-5 order). Compared with one dry seed of the same cultivar, few holes (below 1E-5) were detected in the water-saturated seed.