218 



NORTH AMERICAN FAUNA 74 



Fig. 126. Lacerations of the skin on the flippers (upper) and shoulders (lower) of a 

 Pacific walrus calf presumed to have been battered bv killer whales. (Photos by F. H. 

 Fay) 



apart, on the torso (Fig. 126). The lacerations presumably were made by the 

 teeth of the whales. Internally, the walrus showed fractures of most of the ribs, 

 with associated intramuscular hemorrhage. The broken ends of the ribs had 

 punctured both lungs, resulting in release of about 1 L of blood into the thoracic 

 cavity. The liver also had been ruptured, and another 1 L or more of blood had 

 escaped from it into the abdominal cavit\'. 



The second specimen was a subadult male that, apparently, had died at sea 

 and been cast ashore. This animal had an old, infected bullet wound in its 



