Call me Chimera.

I'm a Chimera. From Wikipedia:

Chimera: Typically seen in non-human zoology (but also discovered to a rare extent in human beings), a chimera is an animal that has two or more different populations of genetically distinct cells that originated in different zygotes; if the different cells emerged from the same zygote, it is called a mosaicism.... This condition is either inherited, or it is acquired through the infusion of allogeneic hematopoietic cells during transplantation or transfusion.

HOWEVER...Chimera was also a monstrous fire-breathing creature...upon the body of a lion with a tail that terminated in a snake's head, the head of a goat arose on its back at the center of its spine.

Visual aid:

Awww, look - I even come in a plush model:

Can you imagine giving that to a little kid?! Creepy.

I'm also a cartilaginous fish. Chimaeras are related to the sharks and rays, and are sometimes called ghost sharks, ratfish (not to be confused with the rattails), or rabbitfishes.

Don't you dare confuse me with a rattail fish!! :)