"Marine Macroinvertebrate, Marine Mammals" shows on one side the most common marine mammals. With regards to the whales, a silhouette of a human shows the size ratio of these species. Weight in tonnes, maximum speed, diving depth and minutes between breaths is specified as well.
The seals' lengths are specified.
On the opposite side the most common molluscs, shellfish and macroinvertebrate in the Greenlandic seas are shown. 
 
Jørgen Steen, Ilinniusiorfik 2015, 2 pages