It really depends on the culture from which the particular shapeshifter story rises. Some east hearts, some other organs, some the entire being. Some do not eat but absorb their victims by various means.
No. Shape shifters are in movies, not real life. Not to be mean, but everyone should know that by now.
shore they are
There are tons of faerie shape shifters.
Shape-shifters, Shifters, Changeling, etc.
Beorn
No. Shape-shifters are not real. They are fantasy.
"Good" and "evil" do not exist. Some shape-shifters do things that people would consider morally wrong, but most don't. No, are you evil?
Shape-shifters can eat practically anything, depending who or what form they are in. Just like sharks can eat meat, earthworms eats dirt, and humans eat plants and animals, they can eat whatever their form can eat.
The exact MPH that the shape-shifters in The Twilight Saga: New Moon is unknown. They are said to be as fast as vampires, if not faster.
Yes, because shapeshifters are werewolves
None, vampires are vampires, not shape-shifters.
Yes. Many cultures have myths about shapeshifters.