A cross-section of a fur seal tooth, under a microscope. Seal teeth
give clues to an animal's age and diet history.
Image ID: fish8303, NOAA's Fisheries Collection
Photographer: Dr. Mike Goebel, NOAA NMFS SWFSC
Credit: NOAA NMFS SWFSC Antarctic Marine Living Resources (AMLR) Program
• High Resolution Photo Available