These tiny creatures have silica exoskeletons. Killer whale cruising the pack ice looking for seals. 1998 January 1364. Graphic derived special sensor Microwave Imager satellite data. 1998 November 1368.
Largest pancake is approximately four feet across.
1998 December 1369. Ice is melting at time of this picture. S Latitude 165 E Longitude. 1990 December 1371. 1996 December 1372.