Answer:
I am commonly abbreviated to H
What is it that makes tears without sorrow. And takes its journey to heaven?
I am asleep when you are awake I am awake when you fall asleep. I can fly but no feathers to aid my flight.
I am not very commonly found! Only in some rainforest! I have an odd number of toes! I'm very lazy and hang upside down!
There's not a kingdom on the earth I haven't traveled over and over and though I know not whence my birth yet when I come you know my roar. I through the town do take my flight and through the fields and meadows green and whether it be day or night I neither am nor can be seen.
For our ambrosia we were blessed, By Jupiter, with a sting of death. Though our might, to some is jest, We have quelled the dragon's breath. Who are we?