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The World Register of Marine Species lists these 23 genera: [1] Abdopus Norman & Finn, 2001 (7 species) Ameloctopus Norman, 1992 (monotypic) Amphioctopus P. Fischer, 1882 (16 species) Callistoctopus Taki, 1964 (11 species) Cistopus Gray, 1849 (4 species) Euaxoctopus Voss, 1971 (3 species) Galeoctopus Norman, Boucher & Hochberg, 2004 (monotypic)
The Deadliest Animal in the World, Gates Notes; These Are The Top 15 Deadliest Animals on Earth, Science Alert; Top 10 Deadliest Animals To Humans In The World, Toptenia; The 25 Most Dangerous Animals In The World, List 25; The Most Dangerous Animals in the World, Animal Danger; Top 10 Most Dangerous Animals In The World, Conservation Institute
Many venomous animals, such as this greater blue-ringed octopus (Hapalochlaena lunulata), are brightly colored or can display bright colors to warn potential predators. Numerous animal species naturally produce chemical toxins which are used to kill or incapacitate prey or as a defense against predators.
The major neurotoxin component of the blue-ringed octopus is a compound originally known as 'maculotoxin'; in 1978, this maculotoxin was found to be tetrodotoxin, [17] a neurotoxin also found in pufferfish, rough-skinned newts, and some poison dart frogs; the blue-ringed octopus is the first reported instance in which tetrodotoxin is used as a ...
"The Giant Pacific Octopus is not generally regarded as a dangerous octopus, unlike its counterpart the Blue-Ringed Octopus." These are the biggest octopuses in the world, with an average length ...
What makes this octopus famous is its venom. Saliva glands of the southern blue-ringed octopus produce the deadly neurotoxin, maculotoxin. [10] The neurotoxin, tetrodotoxin (TTX), is secreted in the posterior salivary gland, which is located in the intestinal blood system of the octopus. This may provide the toxin into its bloodstream.
The creatures are known as dumbo octopuses because of their “large” fins.
The hooded pitohui.The neurotoxin homobatrachotoxin on the birds' skin and feathers causes numbness and tingling on contact.. The following is a list of poisonous animals, which are animals that passively deliver toxins (called poison) to their victims upon contact such as through inhalation, absorption through the skin, or after being ingested.