Answer:
He's big, old and fluffy, And looking rather scruffy. He always needs a shave. It's best to just avoid him, And leave him in his cave
The ninja turtles call this place home, as do mythical alligators.
While I did live, I food did give, which many one did daily eat. Now being dead, you see they tread me under feet about the street.
The signature stroll of ducks and penguins.
Slithery critters with a taste for dirt.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?