An octopus does not have tentacles; they have eight limbs known as arms. Their relatives, squid and cuttlefish, have eight arms and two tentacles. These limbs serve different functions, with tentacles used for capturing prey and arms used for sensing surroundings, finding food, and even walking.
An octopus has eight multi-purpose arms, not six arms and two legs as commonly believed. They use specific arms for various tasks like touching objects and strolling.
This article is in response to a question from Jamie Miranda about the number of tentacles an octopus has.
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Source: www.sciencefocus.com