http://www.horror.com/forum/showthre...&threadid=4179
There's evidence brought up in there.
It's enough to have a heartbeat? Man, if you're not a vegetarian then you're a cannibal.
If you don't have the physical traits that classify you as a human, you're not human.
By the way, you've yet to list your sources for anything remotely scientific you've brought up.