Answer:
Tall when seated, short when standing.
He calls in the morning, the day to renew, if his owner gets hungry, he'll be turned to stew. What is he?
I am covered in quills for protection. What am I?
What grows up while growing down?
It has plenty of backbone but doesn't have a let. It peels like an orange but it comes from an egg.
You use it between your head and your toes, the more it works the thinner it grows.