It looks like something out of a sci-fi film but the research team insist that it is one of many of this strange type of underwater life.
New research on octopus cognition presents a promising model for studying memory networks in other animals and humans.
In the Clarion-Clipperton Zone, surveys until now only compiled lists with informal species names and very few formal species descriptions.
Shark gills can act as natural radiators, cooling down the blood, muscles and organs of a shark.
A group of approximately 10 dolphins was spotted swimming close to the water's surface by the Israeli-Egyptian border.
The feeding method of the Norse hafgufa monster is similar to the feeding method recorded in a video of a whale in 2011.
Oysters, mussels and clams have a mechanism that makes the color of their eyes camouflage to match the color of the water they're in.
A study found man-made noise could increase the risk of mother whales being separated from their calves since their normal vocalizations are quiet.
Sea butterflies are not known to sting or harm humans.
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