@catraxx I'm definitely not one to consider animals inherently inferior, but I think it's fair to assume that your mind would change to such a degree that you stop being yourself. You lose mental the capacity to do and think a lot of things, a good chunk of what makes you who you are. It would effectively be "your" death.

Existing as an animal with a human mind sounds like a nightmare to me because there wouldn't be any intellectual stimulation; no reading or writing, peers who aren't on the same level of intelligence. I wouldn't be able to create art anymore. I would have to hunt, kill and eat raw meat. Even if I had my ideal body, all of this strikes me as unpleasant and I'd rather be a member of the same species in mind, too.