Answer:
Only two backbones and thousands of ribs.
What runs around all day. Then lies under the bed. With its tongue hanging out?
Reaching stiffly for the sky, I bare my fingers when its cold. In warmth I wear an emerald glove and in between I dress in gold.
At night I come without being fetched. By day I am lost without being stolen.
What starts with a 'T', ends with a 'T', and has T in it?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.