Originally Posted by Shishunki

*beams*
Ah hem. The first answer was the "(Vegetable) Lamb of Tartary".

In the Middle Ages, it was believed that cotton came from a plant like sheep. This creature was said to grow from the ground, like a plant. But once it sprouted, it was very much like the animal. The most noticeable difference between regular sheep is the Lamb of Tartary was still attached to the ground by a stem, so the lamb was quite restricted in it's movement. It would eat all the plants it could reach, and then would wither away leaving only bits of it's "wool" behind. It was said to have blood and bones like the animal, but taste different than regular lamb and once passed on it's blood would taste like honey.

Various artists and hoaxers have attempted to recreate this creature, and that is the example we see for our first creature.
*bows*

Edit: Sorry. ^^; I got a little over excited. I don't often get to share this learned information.