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Well, mainly carnivorous animals tend to eat raw meat.

Humans evolved from herbivores and our intestinal tract is still not suited for killing parasites and harmful bacteria present in animal bodies, which is why we delegated part of our digestion to process organic material outside of the body (cooking). Whereas carnivores have high saliva and stomach acidity to digest raw meat, on top of a short and smooth intestine tract for a quick pass through so there's less chance of parasites staying around.

We have none of those carnivorous features, and therefore eating any raw meat is a substantial risk, especially animal bodies with a high likelihood of salmonella contamination. Even when meat is cooked it seems to have negative effects on our long term health, such as increased chance of cardiovascular disease and digestion related cancers.