Most Dangerous Aquatic Animals

The Top Ten
1 Box Jellyfish Box jellyfish are cnidarian invertebrates distinguished by their cube-shaped medusae. Some species of box jellyfish produce extremely potent venom: Chironex fleckeri, Carukia barnesi and Malo kingi.
2 Reef Stonefish

The reef stonefish is the most venomous fish in the world.

3 Great White Shark The great white shark (Carcharodon carcharias), also known as the white shark, white pointer, or simply great white, is a species of large mackerel shark which can be found in the coastal surface waters of all the major oceans. It is notable for its size, with larger female individuals growing to 6.1 m (20 ft) in length and 1,905–2,268 kg (4,200–5,000 lb) in weight at maturity. However, most are smaller; males measure 3.4 to 4.0 m (11 to 13 ft), and females measure 4.6 to 4.9 m (15 to 16 ft) on average. According to a 2014 study, the lifespan of great white sharks is estimated to be as long as 70 years or more, well above previous estimates, making it one of the longest lived cartilaginous ...read more.

This is the most dangerous shark and my cousin said to be the hammer

4 Blue Ringed Octopus The Blue Ringed Octopuses (Hapalochlaena) are the four strongly venomous species that are found on the coral reefs and tidal pools in the Pacific and Indian Ocean, particularly from Australia to Japan. It is known as one of the most poisonous and deadliest sea creatures. It can kill a human body by injecting a toxin from its saliva by biting a victim.

It is more dangerous than a squid, do not think so!

5 Lionfish
6 Fire Coral
7 Sea Snakes

That's different in a anaconda and stuff?

8 Portuguese Man-Of-War
9 Great Barracuda
10 Killer Whale The Orca, or Killer Whale (Orcinus orca), is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. It is recognizable by its black-and-white patterned body. Orcas are a cosmopolitan species and can be found in all of the world's oceans, in a variety of marine environments, from Arctic and Antarctic regions to tropical seas... read more

They literally eat Great White Sharks.

Stan Lee: 'enough said.

The Contenders
11 Crocodiles
12 Torpedo Ray
13 Tiger Shark The tiger shark is a species of requiem shark and the only extant member of the genus Galeocerdo. It is a large macropredator, capable of attaining a length over 5 m. Populations are found in many tropical and temperate waters, especially around central Pacific islands.

These things eat everything. They should be number 1.

14 Humboldt Squid
15 Stingray
16 Bull Shark The bull shark is a requiem shark that is considerably dangerous. These sharks live in both freshwater and saltwater environments. Bull sharks can be recognized by seeing a shark in freshwater and watching the shark due a hit and run.
17 Leopard Seal
18 Swordfish Swordfish, also known as broadbills in some countries, are large, highly migratory, predatory fish characterized by a long, flat bill.
19 Hammerhead Shark
20 Squid Squid are cephalopods of the order Teuthida, which comprises around 304 species. Like all other cephalopods, squid have a distinct head, bilateral symmetry, a mantle, and arms.
21 Giant Squid The giant squid is a deep-ocean dwelling squid in the family Architeuthidae. Giant squid can grow to a tremendous size due to deep-sea gigantism: recent estimates put the maximum size at 13 m for females and 10 m for males from the posterior fins to the tip of the two long tentacles (second only to ...read more.
22 Colossal Squid
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