- Box Jellyfish
There are over 50 species of box jellyfish with extremely po.i.son. The most po.i.sonous one is Chironex fleckeri, or the sea wasp, with one s.ting that lead you to d-e-a-d. Jelly fish are most likely to appear from November to March every year. If you get stünġ, call a̫m̫b̫u̫l̫a̫n̫c̫e̫ at once.
- Blue-Ringed Octopus
All of octopuses are ven.omo.us, but the most d.anger.ous octopus is Blue-Ringed Octopus with 1,000 times more po.i.son than cyanide. If you be bitten by them, you may not realize them because the s.ting was too tiny. Within 20 minutes, the result is…
- Sting rays
S.ting rays are commonly found in the shallow coastal waters of temperate seas. They spend the majority of their time inactive, partially buried in sand. The underside of s.ting rays may produce ven.om, which can be fat.al to humans, and which can remain d̠e̠a̠d̠ly even after the s.ting ray’s d ea.tl-l. In Greek mythology, Odysseus, the great king of Ithaca, was k̫i̫IIed when his son, Telegonus, s̠t̠r̠u̠c̠k̠ him using a spear tipped with the spine of a s.ting ray.
- Beaked Sea Snake
It is also known as the hook-nosed sea snake, the common sea snake, and the Valakadyn sea snake. Just 1.5 milligrams of its ven.om, rated four to eight times as to.x.ic as cobra ven.om, can cause d ea.tl-l to humans but they are not known to at.ta.ck humans often. Despite their ven.om, these snakes are eaten by inshore predators, such as fish and estuarine crocodiles. Beaked sea snakes are primarily found around the coast and coastal islands of India.
Crocodilians are opportunistic predators that are at their most d.anger.ous in water and at the edge of water. Several species are known to at.ta.ck humans and may do so to defend their territories, nests, or young. The Nile crocodile has a reputation as the biggest k̫i̫IIer of large animals, including humans, on the African continent. It is widely distributed, found in many habitats and cryptically colored. From a waiting position with only its eyes and nostrils above the water, it can lunge at drinking animals, fishermen, bathers, or people collecting water or washing clothes. Once s̠e̠i̠.z̠e̠d and d̫r̫a̫.g̫ged into the water, there is little chance for the vi.c.tim to e̠s̠.c̠a̠.p̠e̠.
- Great White Shark
The Great White can do the most dam.mag.e. Sharks are responsible for thousands of unprovoked at.ta.cks on humans across the globe since the year 1580, reports the International Shark At.ta.ck File. When a great white does b̫i̫t̫e̫ a person, it only takes one exploratory b̫i̫t̫e̫ and quickly realizes that the person is not its preferred prey. Unfortunately due to their very large size, even an exploratory b̫i̫t̫e̫ can be fat.al or extremely t̠r̠.a̠u̠m̠.a̠t̠i̠c̠.
- Flower Urchin
Don’t let this sea urchin’s beauty fool you. Each of its “flowers” is actually a tentacle with a little jaw (called a pedicellaria) that can inject to.x.ic ven.oms and potentially k̫i̫II you. Let’s just say there’s a reason that this f̠e̠r̠.o̠c̠i̠o̠u̠s̠ “flower” was named the most d.anger.ous sea urchin in the 2014 Guinness Book of World Records.
- Electric Eel
The electric eel—not actually an eel, by the way—gets its name from the way it at.ta.cks and k̫i̫IIs its predators and prey. Its body contains organs filled with nearly 6,000 electrolytes that store electricity like small batteries; when something (like, say, a human) gets close, the not-actually-an-eel will discharge volts of electricity and s̠.h̠.o̠c̠k̠ the i̠n̠t̠.r̠u̠d̠e̠r̠, sometimes to d ea.tl-l…
- Crown-of-thorns Starfish
Generally about 13 inches in diameter, the crown-of-thorns starfish is larger than its benign, literally washed-up relatives on the seashore. This coral-loving creature is covered in po.i.sonous spines that cause intense, immediate p̫a̫i̫n̫ las.ting for up to three hours.
Straight out of the stuff of nightmares, the candiru feeds on b lo.od and has been found feeding on the u̠r̠.e̠t̠h̠.r̠.a̠s̠ of swimmers. Once it penetrates, it can cause i̠n̠.f̠l̠a̠ m̠.m̠a̠t̠i̠o̠n̠, h̠e̠.m̠.o̠r̠r̠h̠.a̠g̠e̠, aand in s̠e̠.v̠e̠r̠.e̠ cases, d ea.tl-l.