Dangerous creatures found in water

Sea snake - Adapted to a fully aquatic life and unable to move on land, sea snakes are highly venomous.

Blue-ringed octopus - One of the most dazzling of mollusks is also recognized as one of the world's deadliest marine animals.

Great white shark - The fact remains, however, that the great white shark is responsible for by far the largest number of recorded shark bite incidents on humans.

Nile crocodile - An apex predator, the Nile crocodile is capable of taking almost any animal within its range, including us.

Pufferfish - The majority of pufferfish species are toxic and some are among the most poisonous vertebrates in the world.

Stonefish - All members of the stonefish family are toxic, dangerous, and even fatal to humans. In fact, they are the most venomous fish out there.

Lionfish - Lionfish are known for their venomous fin rays, an uncommon feature among reef-dwelling fish along the American East Coast and Caribbean.

Sea lion - Don't be fooled by the sea lion's cute exterior. When agitated or threatened, these super agile creatures can launch a swift attack.

Caribbean fire sponge - There are approximately 5,000–10,000 known species of sponges found in the world's oceans.

Anaconda - The common or green anaconda is the largest snake in the world by weight, and the second longest, after the reticulated python.

Diving bell spider - The diving bell spider is the only species of spider known to live almost entirely under water.

Water moccasin - The water moccasin, a species of pit viper, is the world's only semi-aquatic viper, and is native to the southeastern United States.

Hippopotamus - A large, mostly herbivorous, semi-aquatic mammal, hippos are among the most dangerous animals in the world.

Sting ray - Generally passive in nature, a sting ray will attack humans only when provoked.