Assuming you're not talking about a video game or something...
No, and neither can anyone else. Any stories to the contrary are Fairy Tales/legends/lictional/lies.
It is often called an animal's pelt.
camouflage or mimicry
Another name for an animal's stomach is "abdomen" or "belly."
When one animal eats another, it is called predation.
A vertebrate is an animal with a spine.
In the real world no animal can shape shift.
butt
It is often called an animal's pelt.
To shift someone refers to move someone from one point to another.
Usually when an animal kills another animal it eats the body but it is possible that an animal could kill another animal and the dead animal's body could fall into a small stream or pond where it could decompose and pollute the water.
a predator
prey.
I think all you do is find a quiet spot and think about the animal you want to change into. Some people make sounds or move like the animal.
A shift occurs when there is a movement from one tune to another between syllables. A glide occurs when the voice moves from one tone to another midsyllable.
To shift a boy or a girl means to move onto another boy or girl.
The one eating is called consumer. The organism killing and eating another is called a predator. The other animal is prey.
Another name for a four legged animal is a quadruped.