The sea hounds of the Frisian Islands
Photographs by Jeroen Hoekendijk, text by Philip Hoare
A seal pup covered with lanugo, a protective layer of fluffy hair, stained yellow with amniotic fluid. As the pup grows, its coat will become pure white, which it will then moult and gain its final coat, with a spotted pattern unique to each animal, a helpful means of identification for researchers.

