Answer:
A huge mythical animal said to resemble a whale.
Creeping on its belly, curled into a ring. Eyes forever open, beware its lethal sting
I am an animal named after the animal that I eat.
Stealthy as a shadow in the dead of night, cunning but affectionate if given a bite. Never owned but often loved. At my sport considered cruel, but that's because you never know me at all.
What animal has feet on the head?
Black we are and much admired. Many seek us if they are tired. We tire the horse, and comfort man, and turn White when we've fulfilled your plan.