Unexpected! These are the World's 10 Most Poisonous Animals<br /><br />Pufferfish (Tetraodontidae)<br />The skin, muscle tissue, liver, and gonads of pufferfish all contain a toxin called tetrodoxin<br /><br />Poison frogs (Dendrobatidae)<br />The poison that the frog's own glands have is called batrachotoxin. This poison blocks nerve signals to the muscles causing paralysis and death<br /><br />Inland tycoon snake (Oxyuranus microlepidotus)<br />This snake lives in Australia and has a neurotoxin that can kill a person in 45 minutes<br /><br />Brazilian wandering spider (Phoneutria)<br />The high doses of serotonin in the venom of the Brazilian wandering spider are very painful. The neurotoxins present can cause paralysis and death<br /><br />Rockfish (Synanceia verrucosa)<br />The spines on the back of this fish carry toxins that can cause swelling, tissue necrosis, paralysis, shock and eventually death<br /><br />Israeli yellow scorpion (Leiurus quinquestriatus)<br />This scorpion venom is very dangerous because it causes pain and failure to breathe<br /><br />Blue ringed octopus (Hapalochlaena)<br />The blue ringed octopus (Hapalochlaena) has a venom that can kill 26 adults at once<br /><br />Marble cone snail (Conus marmoreus)<br />Marble cone snail (Conus marmoreus), the antivenom has not been found until now<br /><br />King cobra (Ophiophagus hannah)<br />Seven ml of venom from a king cobra is enough to kill an elephant or 20 humans<br /><br />Box jellyfish (Cubozoa)<br />Many of these jellyfish float in the waters around Asia and Australia. This jellyfish sting can cause a heart attack and lead to death
