Answer:
I am covered in quills for protection. What am I?
For our ambrosia we were blessed, By Jupiter, with a sting of death. Though our might, to some is jest, We have quelled the dragon's breath. Who are we?
A mysterious, fantastic creature, It has one defining feature, And for humans at their worst, In their eyes it's just a horse
I hop and am known for having long ears and a fluffy tail. What am I?
Face with a tree, skin like the sea. A great beast I am. Yet vermin frightens me.
You use it between your head and your toes, the more it works the thinner it grows.