Answer:
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see.
There are millions of me. I am very small but when moving fast I am deadly.
People are hired to get rid of me. I'm often hiding under your bed. In time I'll always return you see. Bite me and you're surely dead.
Voiceless it cries, wingless flutters, toothless bites, mouthless mutters.
The moon is my father. The sea is my mother. I have a million brothers. I die when I reach land
Why is the letter B always cool?