Following is a transcript of the video. Narrator: A turtle's shell is as much a part of its body as our rib cage is of ours. In fact, it is their rib cage, and their spine, and their vertebrae ...

medium-sized turtle with a shell up to seven inches long. The upper shell is olive to dark brown; the lower shell is hinged, front and back, and varies from yellow to cream colored. Sonoyta mud ...