What is the most poisonous fish is the world?
551444
puffer fish\n\nThe ovaries and liver have the most poison in them.\nIf properly prepared, the meat can be eaten. This meat is known as fugu in Japan.
203021
Not sure about humans but high levels of nitrates can kill fish.  However if you're drinking water with that high of a concentration, it probably doesn't taste very good.\n\nGet a water filter.
448488
Black Widow is considered the most venomous spider in North America.\n\nThe venom of the black widow spider is 15 times as toxic as the venom of the prairie rattlesnake.\n\nA group of spiders that is dangerous in many countries belongs to the genus Latrodectus in the Family Theridiidae. In Australia we have the Redback Spider (Latrodectus hasselti). In America, a common representative of this genus is the Black Widow (Latrodectus mactans).\n\ni would say that they are as dangerous as each other but the black widow killed more than the red back
411209
Catfish usually love the stinkiest (and nastiest) bait you can find.  I've always had alot of luck with chicken livers.
287434
The deadliest and most venomous snake is without a doubt the Rhinocerous Viper of Africa. Man, that thing is SOOO colorful! Looks nice, but it is DANGEROUS. Watch out for it next time you visit Africa! \n\nGold is impossible to decompose, by the way.
539846
The candirú or canero (Vandellia cirrhosa) or Toothpick Fish is a freshwater fish in the group commonly called the catfishes. It is found in the Amazon River and has a reputation among the natives as the most feared fish in its waters, even over the piranha. The species grows only to a size of an inch in length and is eel shaped and translucent, making it almost impossible to see in the water. The candiru is a parasite. It swims into the gill cavities of other fishes, erects a spine to hold itself in place, and feeds on the blood in the gills, earning it a nickname as the "vampire fish of Brazil".\n\nIt is feared by the natives because it is attracted to urine or blood, and if the bather is nude it will swim into an orifice (the anus or vagina, or even in the case of smaller specimens the penis - and perhaps deep into the urethra). It then erects its spine and begins to feed on the blood and body tissue just as it would from the gills of a fish. The candiru is then almost impossible to remove except through an operation. As the fish locates its prey by following the water flow from the gills to its source, urinating while bathing increases the chance of a candiru "homing in" on a human urethra.\n\nA traditional option is the use of two plants, the Xagua plant (Genipa americana) and the Buitach apple which are inserted (or their extract in the case of tight spaces) into the affected area. These two plants together will kill and then dissolve the fish. More often, infection causes shock and death in the victim before it can be removed.
577232
Taipans are large (up to 3 metres in length), fast, highly venomous Australian snakes, one of which, the Fierce Snake, has the most toxic venom of any land species worldwide. The name derives from that of the Thaypan tribe of Aboriginal people of central Cape York Peninsula, Queensland, Australia.\n\nThere exist two species: the Common Taipan, and the less common Fierce Snake (also known as Inland Taipan and Small-Scaled Snake) (Oxyuranus microlepidotus). The Common Taipan is broken up into two subspecies, the mainland Coastal Taipan (Oxyuranus scutellatus scutellatus) and the Papuan Taipan (Oxyuranus scutellatus canni) which is native to the southern coast of Papua New Guinea. Their diet consists primarily of small rodents, especially rats.\n\nThe Coastal Taipan is usually pale to dark brown in colour, fading to a lateral cream, although juveniles are lighter in colour. The Papuan Taipan is black or purplish-gray, with a copper-coloured stripe on its back.\n\nIts the Inland Tapian
1120673
I don't know about poisonous, but all reptiles can carry bacteria on their skin that can be harmful, especially to children.  That is why washing hands after touching your reptile is very important.
453559
Fugu Blow-fish, or Puffer fish. This can be prepared only by licensed chefs in Japan and the USA who have studied under a master for a long apprenticeship. The various organs of the fish contain a highly dangerous neurotoxin, tetrodotoxin; ingestion of even a few milligrams of any of the fish's organs, or fluid which was contained in the organs will result in paralysis and death in 15 minutes. This is the same toxin used to create "zombies". Fugu is quite expensive in Japan, and hard to come by in the USA. It can cost approximately $100 per serving.  ( http://www.nephco.com/sushi/definitions_1.html )
1145987
1) Centipede:  Are venomous, predatory terrestrial arthropods.  Some species are highly venomous with extremely toxic venom on their claws which can cause death in humans.\n\n2) Millipede:  Many species emit somewhat poisonous liquid secretion or hydrogen cyanide gas through microscopic pores along the sides of their bodies as a secondary defense. \n\nAs far as humans are concerned, this chemical brew is fairly harmless, although it should never be eaten or applied to the eyes.\n\nHope these answer will help U...
1185892
The poison from the skin of the world's most poisonous known creature-the tiny, 1.5-inch, Golden Poison Frog (Phyllobates terribilis)-kills the monkey.\n\nAn average P. terribilis contains about one milligram of poison, which is enough to kill 10,000 mice-perhaps enough to kill 10 to 20 humans if the poison reaches their bloodstreams.\n\nThis extraordinarily lethal poison (a steroid alkaloid, called batrachotoxin) almost does not occur in nature. We have found this poison only among three poison frogs in Colombia and two poison birds in Papua, New Guinea.\n\nThe yellow frog stores the poison in skin glands, as do most frogs. Due to their poison, frogs taste awful to predators but P. terribilis' poison kills whatever eats it-except for a snake (Liophis epinephelus). This snake is resistant to the frog's poison but not immune.\n\n"We fed one juvenile frog to a snake and the snake showed great distress and was rendered helpless for several hours," says John Daly, chief of the National Health Institute's bioorganic chemistry laboratory.\n\nThe poison frogs are perhaps the only creatures immune to this poison. The poison attacks the sodium channels of the cells. Through the ages, the clever frog has evolved special sodium channels that the poison can not harm.
662307
The poison dart frog is a more dangerous species than the Cane toad. It seems that although all toads are atleast mildly poisonous as has been stated, frogs can have a much more toxic and lethal poison than a toad. There are 5,296 species of anura, the order than frogs and toads are in, and the toads are in the family Bufonidae.
1077254
Well, the only venomous lizards in the world are the Gila monster, which is found in the Southwestern USA extending into Mexico, and the beaded lizard, which is from Mexico.  \n\nThere are lizards, such as the komodo dragon (Indonesia) that have bacteria in their saliva that can kill; but they're not technically venomous.  \n\nIf the animal is an amphibian (wet/slimy skin, smooth, not scaly); then yes, it is poisonous -- all amphibians are; the poison is in their skin/slime.\n\nAside from that, I'd suggest contacting a local Biology teacher at a college/university; or a local zoo if you have one.\n\nWhen in doubt, leave it alone; and good luck with your search!\n\nAdditional information, because "leviter" seems to think I'm making these things up:\n"Because of the bacteria, a Komodo's saliva is poisonous" - PBS documentary cited below.  "the toxic bacteria in their saliva will kill it within the next few days" -- Smithsonian National Zoo Website listed below. "Their saliva contains more than 50 different strains of bacteria that can result in the death of prey from infection even after only being bitten" -- Univ. of Michican Museum of Zoology\n\nVenomous lizards -- "The Gila monster is one of only two venomous lizard species in the world." -- from the Saint Louis Zoo website.  You can also check the Merck manual on "Venomous Lizards."\n\nAmphibian toxicity -- "All amphibian skin is poisonous to a degree. The major reason for this is to produce a bad taste to a potential predator. Some species of amphibians do have secretions that are toxic to humans and other animals, such as the poison dart frogs and other tropical frogs of the family Dendrobatidae." from the US Geological Survey Website\n\nLeviter's information comes from a single source, which holds credibility in that it appears in a peer-reviewed journal, Nature.  The article mentions that the lizards mentioned posess venom glands; but I didn't read whether they had actually retained a means of injecting said venom.\n\nAgain, find a local expert (zoo or university); but remember that wild animals typically won't go out of their way to harm you if you leave them alone & give them their space.
939595
kills fish and other bacteria
717663
The Great White Shark (Carcharodon carcharias), also known as White Pointer, White Shark, White Death, or Amaletz, is an exceptionally large lamniform shark found in coastal surface waters in all major oceans. Reaching lengths of about 6 meters (20 feet) and weighing almost 2,000 kilograms (4,000 pounds), the Great White is the world's largest predatory fish. They are the only known surviving species of their genus, Carcharodon. The Great White Shark has a robust large conical-shaped snout. It has almost the same size upper and lower lobes on the tail fin (like most mackerel shark, but unlike most other sharks). It is pale to dark gray and has a white belly.
1155876
The most venomous scorpion in the world is the Palestine yellow scorpion (Israeli gold), Leirus quinquestriatus, of the Middle East
1127638
Which Snake's Poison ?\nPlease enlighten us with the results !