Lurker

Genesis

Meanwhile lurking by a stone in the mud, 
two eyes looked to see, where I was, 
and then, something spoke, and this is what it said to me - 

Clothes of brass and hair of brown. 
Seldom needs to breathe, 
Don't need no wings to fly. 
And a heart of stone 
And a fear of fire and water. 
Who am I?