OK think you KNOW what a water moccasin looks like?  Here is the challenge for you then.  
Here are six water snakes and all of them live in the same places the cottonmouth does.
So you tell me which one or which ones are venomous and which are not.  Scroll down and
note the letter of the snake you are convinced is a water moccasin.  Then click
the link at the bottom to see what each snake really is.

Snake A

Snake B

Snake C

Snake D

Snake E

Snake F

Click Here To Learn What Type of Snake Each Of These Are.