Yellow teaser snake.
look up broad banded Water Snake &Plain belly water snakes both are found in oklahoma & both are non-venomous.
There are several snakes that meet this description in the state of Oklahoma. Most likely it is a common garter snake or a Graham's crayfish snake. Both are known to swim and catch small fish.
Crows
king snake King Snakes do not have triangular head and are also not totally black. They are most commonly black with thin white stripes. Solid black may have been a common black snake or racer, although juveniles have a bluish tint. They also do not have triangular heads
The cottonmouth snake, also referred to the water moccasin, is a venomous snake that lives in warmer climates. The snakes life stages are egg, baby and adult.
could be a black rat snake. those are not poisonous. they are almost harmless. (other person) It could be a water mocasin. Those are highly poisonous to people. They are also called cottonmouths.
There are several snakes that meet this description in the state of Oklahoma. Most likely it is a common garter snake or a Graham's crayfish snake. Both are known to swim and catch small fish.
It lives on land.
a common water snake
You need to provide more detail to get an accurate answer. Where is the snake found? (Its location and natural habitat) Is it all black with just a blue stripe? Does it have any other markings?
It lives mainly in the water but can also travel on land.
Boa constrictor
Crows
Water Moccasins
Numerous water reptiles live in Australia. They include:Saltwater (Estuarine) crocodileFreshwater crocodileEastern water dragonsSea snake e.g. Northern mangrove sea snake, Olive sea snake, etcEastern water skinkMarine turtle - various species
king snake King Snakes do not have triangular head and are also not totally black. They are most commonly black with thin white stripes. Solid black may have been a common black snake or racer, although juveniles have a bluish tint. They also do not have triangular heads
Depends largely on where you saw said snake. Here in Texas it could be a water snake, a water moccasin, a rat snake, or several others, depending on the pattern of the coloration, head size/shape, ect...
water horses are not proven real. but the scientists that believe in it think its a reptile that lives in water. sortof like a water snake.