The Hawaiian monk seal is one of the most endangered pinnipeds on earth, and one of the least-known.
Endemic to the Hawaiian Islands, the species numbers around 1,500 individuals, a population that has been declining for decades.
The monk seal got its name from the folds of skin around its neck that resemble a monk's hood.
The name fits a creature that is quiet, solitary, and increasingly rare. In the Northwestern Hawaiian Islands, marine debris accumulates on the beaches.