The day dawns twice, The night sets twice, Yet only Twenty-four hours have passed. What am I?

I never stay the same for long, yet you insist my shape is a horse or swan. You point and argue, laugh and vow, but look! I’m already different now.

In the burrowed halls of earth, a stripey knight does dwell. Fierce in fight, yet small in might, its tales the woods do tell.

Forever I stretch, some would say I carry a fishy stench. A salty taste and an experience so sweet; dance with the sun and cool off from the heat.

My hair stays green above the ground, while orange treasure’s hidden down. Pull me free and crunch away, what am I you may eat today?