Greenland Shark - block of stamps mint never hinged, Burundi

This block of stamps on the topic of "Greenland Shark" was published on October 15, 2012 and contains four stamps. The stamps for 1,180 F, 1,190 F and twice 3,000 F as well as the edge of the block show bowhead sharks (Somniosus microcephalus).
The bowhead shark or Eishei with a length of 3-4 m, at most 8 m, inhabits arctic waters, preferably one depth from 200 to 600 m and only stays in cold areas. Its distribution area extends from the Arctic Ocean to about the height of England.