Unlike the octopus's arms, which that animal often uses to move and carry objects, the cuttlefish's eight arms are specialized for grasping prey after the cuttlefish captures it with its two ...

Squid and cuttlefish have arms, but also tentacles. Cephalopod tentacles and arms lack bones; instead, they are built from an intricate tapestry of coiling muscle fibers.

Amanda Montañez; Source: “Cuttlefish Interact with Multimodal 'Arm Wave Sign' Displays,” by Sophie Cohen-Bodénès and Peter Neri in BioRxiv. Published online May 5, 2025 ( reference ) ...

Cuttlefish combine these colors with body postures that reinforce the signal, such as raising or lowering their arms, but marine biologists have wondered if they might have other ways to get the ...

Localized learning and memory could take place in the arms of cuttlefish and other cephalopods, separate from the brain. Dwarf cuttlefish. Source: Adam Dewan, via Flickr.

Cuttlefish may "wave" at each other with their tentacles to communicate, new research suggests.. But the study, which has not yet been peer-reviewed, didn't determine what messages the arm waving ...

They use these elongated arms to grab their prey. Cuttlefish have a short life span, but they grow quickly. They may only live one or two years, but some species can grow up to about 23 lbs (10.5 kg).

In its research, the team studied four different arm movements in two cuttlefish species, S. officinalis and S. bandensis.The researchers recorded videos of animals signing and played them back to ...

For the pulse technique, the cuttlefish pull their arms upward into a cone and pulse black waves toward the tips. This may mimic something nonthreatening, the researchers suggest, ...

Cuttlefish may "wave" at each other with their tentacles to communicate, new research suggests.. But the study, which has not yet been peer-reviewed, didn't determine what messages the arm waving ...

Source: Adam Dewan, via Flickr. Distributed under a CC BY-NC-SA 2.0 license. Cuttlefish, like their fellow cephalopods squid and octopus, are known for their intelligent and complex behaviors ...