Add Yahoo as a preferred source to see more of our stories on Google. Photo Credit: Deep Sea Research Center, University of Western Australia With super-thin arms that grow up to 26 feet long and a ...

At an incredibly deep depth, where sunlight does not penetrate, and food is scarce, researchers have documented a phenomenon that has been baffling marine biologists. In a video shot in December 2025, ...

Cephalopods—the class of animals that comprises octopuses and squids—are ubiquitous throughout the ocean, including in the deep sea. However, researchers still don't know very much about the ...

An elusive deep-sea squid species was caught on camera for the first time ever in a major breakthrough. National Geographic, on June 10, revealed the "history-making sighting" of a massive, three-foot ...

The squid's tentacles can grow over 3 feet long. Humboldt squid (Dosidicus gigas) are also known as jumbo squid, and it's easy to see why — they are absolutely enormous. An adult can reach 7 feet in ...