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The blue-ringed octopus, despite its small size, carries enough venom to kill 26 adult humans within minutes. Their bites are tiny and often painless, with many victims not realizing they have been envenomated until respiratory depression and paralysis begins. [11] No blue-ringed octopus antivenom is available. [12]
The greater blue-ringed octopus, despite its vernacular name, is a small octopus whose size does not exceed 10 centimetres (3.9 in), arms included, with an average weight of 80 grams (2.8 oz). Its common name comes from the relatively large size of its blue rings (7 to 8 millimetres [0.28 to 0.31 in] in diameter), which are larger than those of ...
The southern blue-ringed octopus (Hapalochlaena maculosa) is one of three (or perhaps four) highly venomous species of blue-ringed octopuses. It is most commonly found in tidal rock pools along the south coast of Australia .
The blue rings of the highly venomous blue-ringed octopus are hidden in muscular skin folds which contract when the animal is threatened, exposing the iridescent warning. [125] The Atlantic white-spotted octopus (Callistoctopus macropus) turns bright brownish red with oval white spots all over in a high contrast display. [126]
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.
A Washington state woman was bitten by an octopus as she placed the creature on her face for a photo opportunity last week. Fishing guide Jamie Bisceglia, 45, landed in the hospital after she held ...
The blue-lined octopus is about the size of a golf ball, having a mantle length of 45mm, it is the smallest out of the four species that make up the genus. While at rest blue-lined octopus are highly camouflaged, due to the presence of chromatophores under the skin they can rapidly change body coloration, using aposematic signals to display ...
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