While the claim seems a bit out of this world, new research into their brains continues to show just how alien the octopus is, even if it doesn’t end up being of extraterrestrial origins.

Octopuses seem to be particularly prone to alien theories. A new paper proposes—based on an old theory—that octopuses might have cosmic origins. The problem is that all the evidence says they ...

Part of the octopus’ charm is in its contradictions: they are surprisingly alien-looking, yet express so much curiosity and problem-solving prowess — human traits if there ever were any.

Recently, a NOAA-funded expedition encountered a rare undersea “alien” when. In the science fiction horror Europa Report (streaming now on Peacock), ...

Everything about the octopus seems strange — unworldly, even, as some have suggested — compared to other life forms on Earth. Their evolutionary history is thought to go back 330 million years ...

Octopus vulgaris has up to 150,000 chromatophores, or pigment sacs, in a single square inch of skin. Like many cephalopods, the common cuttlefish ( Sepia officinalis ) is thought to be colorblind.