This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The vast majority of octopus species live ...

In Jules Verne’s 20,000 Leagues Under the Sea, the crew of the Nautilus takes a break from going for swims and pissing off native islanders to admire an armada of strange beasts floating along the ...

As far back as Aristotle, naturalists have wondered why the females of a strange group of octopuses sport a thin, papery shell when plenty of their tentacled cousins are essentially naked, letting all ...

Unique, free-swimming octopuses called argonauts, use their stunning white shells to remain neutrally buoyant beneath the sea surface, say Australian researchers. Dr Julian Finn and Dr Mark Norman ...

The argonauts are a group of octopuses unlike any other. The females secrete a thin, white, brittle shell called the paper nautilus. Nestled with their arms tucked inside this beautiful, translucent ...

The vast majority of octopus species live along the sea floor--whether that is in the sandy shallows off a tropical coast or in the dark depths around hydrothermal vents. But a handful of octopuses ...