A necropsy is a complete examination of a dead animal, both external and internal, conducted by experts. This procedure is used to collect valuable internal samples and attempt to determine why the animal died. MARS works directly with a network of partners including pathologists from the Canadian Wildlife Health Cooperative and Fisheries and Oceans Canada to conduct these necropsies on large marine animals in the field. In order to carry out such a monumental task, many hands are required for a variety of different tasks and volunteers are an essential component of necropsies. 

Volunteers interested in this work are trained in how to assist with a necropsy, human health & safety and sample collection.