Random Riddle: A Wild Beast

I am a wild, untamed beast:
I command respect and awe in most,
and those who regard me as harmless
will most likely find themselves dead by my hand.
Men cannot control me, or hold me behind bars,
But they ride me. However,
They must use caution, for at any moment I can
Rear up, throw them aloft,
and swallow them whole.
Poems have been written to my mighty roar,
And yet children play carelessly beside me.
I am a mighty entity, and one day
I shall rise above the entire Earth.

What am I?

 

Random Riddle: A Wild Beast