Natural causes of death in non-suckling grey seals (Halichoerus grypus)

Department of Veterinary Pathology, University of Liverpool.

Thirty-four grey seals which died of natural causes were examined. They ranged in age from aborted fetuses to adults, but suckling pups were excluded from the study. The commonest primary cause of death was pneumonia and a variety of parasitoses occurred as secondary lesions.