Answer:
What is shaped like a box, has no feet, and runs up and down?
What has a head and a tail but no body?
I am black and white and full of fuzz
I am a kind of coat that can only be put on when wet.
I can be hairy and itchy all over. I hang on a stick. I can be the scariest thing you have ever seen. I stand in the middle of nowhere.
Dry though I may be, I am still a sea.