Windsurfing in Hattaras we encountered Water Moccasins, when we got home looked them up, sidewinder/moccasins are similar and refer to each other, with the moccasin being the more dangerous of the two. (Exact reason don't know).
IMHO the difference is that snakes are land creatures and moccasins are forced to live in water so have serious attitude therefore more willing to bite you because, well just because I'm wet and I don't like it attitude.
IMHO the difference is that snakes are land creatures and moccasins are forced to live in water so have serious attitude therefore more willing to bite you because, well just because I'm wet and I don't like it attitude.