Fact check: Swimming method an unreliable indicator of venomous snakes
Swimming Snake Skeleton Frame - Dendrelaphis Pictus – LUNA NOVA
The California Watersnakes Site
Northern water snake will escape below surface, but if it can't you should expect plenty of biting - Cambridge Day
Damselfly riding across pond on the head of a SNAKE
A sea snake swimming in water : r/pics
1,082 Water Snake Stock Photos, High-Res Pictures, and Images - Getty Images
7,211 Snake Water Stock Photos, High-Res Pictures, and Images - Getty Images
Snakes on the Water: Cottonmouth or Watersnake?