We can eat raw meat just fine, it's just that we're now rather fond of avoiding the parasites and bacteria raw meat can harbor, hence why we cook it (and it tastes better)

Raw meat is still eaten in some places, too. Raw pork is still eaten in Germany, Sushi is raw fish, and there are amazingly some raw chicken recipes. I personally know an older family friend who told me he used to eat raw ground beef that he sprinkled salt on, it wasn't too uncommon in rural areas.

Other animals can have stronger stomach acid to deal with the bacteria or viruses, but even with that, most predators end up with parasites, which is partly why humans rarely eat them.