Inland Taipan Snake

The prize for the Worlds Most Venomous Snake goes to the Inland Taipan Of Australia . Just a single bite from this from this snake contains enough vennom to kill 100 human adults or an army of 25000 mice. Its venom is at least 200-400 times more toxic than a common cobra. the Inland Taiwans extremely neurotoxic venom can kill an adult human in as little as 45 minutes. Fortunately this snake is very shy and there have been no documented human facilities (all known bites were treated with anti venin.

Brazilian Wandering Spider

The Brazilian Wandering Spider (Phoneutria) or banana spider appars in the Guinness Book Of World Records 2007 for the most Venomous spider and is the spider responsible for the most human deaths.
This spider is beleived to have the most potent neurotoxic venom of any living spider . Only 0.006mg (0.00000021oz) is sufficient to kill a mouse. They are also so dangerous becuase of their wandering nature. They often hide during daytime in highly populated areas inside houses, clothes, boots and cars.

Stone Fish

May be Stoneefish would never win a beauty contest, but it would definately win the top prize for being The World Most Venomous Fish. Its Venom causes such a severe pain that the victims of its sting want the affected limb to be amputated. It is described as the worst pain known to man. It is accomplised with possible shock , paralysis, and tissue death. If not given medical attention within a couple of hours . It can be fatal to human. Stonefish stores its toxins in gruesome looking spines that are designed to hurt would be predators. Stonefish mostly live above the tropic of Capricon, often found in the shallow tropical marine waters of the Pacific and Indian oceans.

Death Stalker Scorpion

Fortunately while a sting from this scorpion is extremely painful , it would be unlikely to kill a healthy, adult human. Young children , the old, or infirm(with a heart condition) are at the biggest risk. Death stalker scorpions are spread in North Africa and Middle East.

Blue Ringed Octopus

The Blue Ringed Octopus is very small , only the size of a golf ball, but its venom is so powerfull that can kill a human. Actually it carries enough poison to kill 26 adlt humans within minutes , and there is no antidote. They are currently recogonized as one of the worlds most venomous animals.
Its painless bite may seem harmless, but the deadly neurotoxins begin working immediately resulting in muscular weakness, numbness, followed by a cessation and breathing and ultimately death.
They can be found in tide pools in the Pasific Ocean, from Japan to Australia.

Marbled Cone Snail

This little beautiful looking marbles Cone Snail can be as deadly as any other animal on this list. One drop of its venom is so poweful that it can kill more that 20 humans. If you ever happen to be in warm salt water environment(where these snails are often found) and see it, dont even think of picking it up. Of course, the true purpose of its venom is to catch its prey.
Symtoms of a cone snail sting can start immediately or can be delayed in onset for days. It results in intense pain, swelling , numbness and tingling . Servere cases involve muscle paralysis, vision changes and breathing faliure. There is no antivenom. However, only about 30 human deaths have been recorded from cone snail envenomation.

King Cobra

The King Cobra (Ophiophagus hannah ) os the worlds longest Venomous snake - growing up to 5.6 m (18.5 ft) in length. Ophiophagus , literally means snake eater as it eats other snakes . One single bite of this deadly snake can easily kill a human. This snake is even capable of killing a ful grown asian Elephant within 3 hours if the larger animal is bitten in a vulnerable area such as the trunk.

Its venom is not as toxic as other venomous snakes, but King Cobra is capable of injecting 5 times more venom tha black mamba and can result in morality up to 5 times faster that that of the black mamba. It is quite widespread, ranging across South and South east Asia, living in dense high land forests.

Box Jellyfish

Jelly box can be found in the waters around Asia and Australia . Looks can be very deceiving . Floating peacefully through the waters, the Box Jellyfish has venom powerful enough to stop a human heat in three minutes. This jellyfish is responsible for more death in Australian that Snakes and Salt water Crocodiles. They are a hazard to Pacific swimmers and divers.