Question

Do poisonous snakes swim on top of water or under?

Answer 1

Poisonous snakes will swim with their heads above the water because a poisonous snake swims with their lungs inflated.

So if you see a snake swimming on top of the water then it's most likely a poisonous snake.

Non poisonous snakes will be seen swimming under the water.

Although there is a snake called the coral snake that is very poisonous and sometimes swims both on top of the water and under the water.

Answer 2

Poisonous snakes or venomous snakes swim on top of water.

And only poisonous snakes will swim with their entire bodies visible on the water.

If you see a snake that is swimming on top of the water with their entire bodies visible then it's a poisonous snake.

Non poisonous snakes only swim below water.

Venomous snakes do also swim underwater as well.