Octopus arms are adaptable but some are favored for particular jobs
Researchers analyzed nearly 4,000 arm movements from 25 wild octopuses, finding front arms perform 64% of actions mainly for exploration while rear arms support locomotion.
- Scientists found that octopuses do not have a dominant arm, preferring to use their front arms for tasks about 60% of the time.
- The three octopus species in the study showed no preference for right or left arms in their natural environment.
- The rear arms of octopuses are mainly used for walking, while the front arms are for exploring.
- The complexity of octopus limbs allows them to be utilized for both mobility and environmental sensing.
53 Articles
53 Articles
octopuses do not use all their eight arms equally, but they use some preferred for certain activities. Scientists have found this out - and robot development could also benefit from it.
Why do octopuses use the forearms when exploring and when crawling the forearms? Researchers have analysed the behavior of the animals in detail.
The octopus is a fascinating and enigmatic marine animal, and one of its most striking features is its tentacles, or officially, its arms. These eight appendices not only allow them to move and capture prey, but hide endless curiosities that surprise even scientists. Now, as published in Science Reports magazine and after a study on 25 octopus it has been concluded that each of these tentacles can serve a particular task. Thus, while the forward…
The front arms are often used to explore the rear to move around. Robot development could benefit from these findings.
Unlike humans, octopuses coordinate not only two but eight arms with suction cups. A video analysis now shows: Depending on the task, they prefer to use other limbs.

Octopuses tend to explore with their front limbs
WASHINGTON — Humans may be right-handed or left-handed. It turns out octopuses don't have a dominant arm, but they do tend to perform some tasks more often with their front arms, new research shows.
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