Necropsy: "the term for a post-mortem examination performed on an animal. The prefix 'auto-' means 'self', and so autopsy denotes the human species performing a post-mortem examination on one of its own." (from Wikipedia)
Lately, we have been necropsying lots harbor seal stomachs. Native hunters have kindly donated us the stomachs and various organs and guts from seals they have hunted (others are not allowed to hunt seals). These donated tissues are windows into what constitutes a "healthy" seal as they did not die of an illness. All of the other tissues we receive typically come from animals who die a "natural" death which usually means they weren't doing so well.
With the stomachs we are emptying the contents, which we will later clean & identify, weighing them and describing them. We can find out what they are eating and what kind of parasites they have. These animals were shot at differing stages of digestion and sometimes we pull full fish out. Some of them really reek. As we do this work in a quarantined area (to prevent spreading potentially infectious material to healthy captive animals or vulnerable rescue animals) we cannot step out to get a fresh breath of air. When the smell gets too much though we go to aromatherapy which consists of sticking one's nose in the citrus scented Chlorox wipe container and breathing until nausea passes. I am amused by this as I usually find perfumed or scented things objectionable as they set of my hay fever. Luckily, I tolerate citrus smells well. (PS - I am kindly restraining from posting pictures of the said stomachs.)