Then, without warning, colors start rippling across its skin — flashes of deep crimson, bursts of mottled brown, rapid shifts ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. It’s hard to identify individual members of another species ...

A new study has shown octopuses' sleep might be more like humans than initially thought and could even include dreaming. The study found octopuses have a sleep pattern similar to REM where most ...

A tiny “settled” Red Octopus explores its surroundings at Birch Aquarium. Photo: Jordann Tomasek. “This is an exciting ...

Some octopuses intimidate their neighbors by turning black, standing tall and looming over them threateningly, like an eight-armed Dracula. That's according to a study published Thursday that helps ...

Camouflage isn't the only way cephalopods have evolved to change their appearance. Octopuses and other cephalopods make the fastest transformations in the animal kingdom. Here, a giant Pacific octopus ...