Answer:
Slithery critters with a taste for dirt.
They swim around in schools or pods and they are related to whales
I can 'fly' underwater and have eight arms. What am I?
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?
It has 8 arms and lots of ink but can't write a word.
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.