A newborn Grey Seal pup (Halichoerus grypus) on the shore in winter, at Donna Nook Nature Reserve, on the North Sea coast of Lincolnshire, Great Britain.

grey seal pup newborn nature reserve winter north sea lincolnshire wildlife marine mammal coast habitat resting animal shoreline natural setting british life conservation ecology aquatic birth nurturing species environment young watching biology behavior colony flippers adaptation fur soft coat instincts feeding growth survival landscape coastal biodiversity great britain