File name: dissolvingpteropod_620x1000_featuredimage.jpg Original Resolution: 620 × 1000 File Size: 201 KB (MIME Type: image/jpeg) Date Published: May 8, 2014 Download file View image caption The top photo shows a healthy pteropod with a transparent shell and smoothly contoured shell ridges. The bottom photo shows what happens when the shell starts dissolving in corrosive waters.