Answer:
John Lennon sang about being this toothy creature.
It has plenty of backbone but doesn't have a let. It peels like an orange but it comes from an egg.
He's big, old and fluffy, And looking rather scruffy. He always needs a shave. It's best to just avoid him, And leave him in his cave
If a dog were filling out a resume, he might list his mastery of this game under "skills."
I live in the desert and have humps to store water. What am I?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.