World Octopus Day reveals how intelligent, adaptable, and important octopuses are to our planet’s oceans today.

With three hearts, blue blood, and the ability to squeeze through a space the size of their eyeballs, octopuses are said to be like aliens on Earth. The new National Geographic docuseries, "Secrets of ...

In the new Prime documentary series “Octopus!” actress Phoebe Waller-Bridge spends an hour and a half narrating a story about an octopus named Doris that sets out on her own, falls in love and ...

Last year, speculative fiction author Ray Nayler published "The Mountain in the Sea," his first novel, depicting a not-too-distant future in which humankind is faced with an awe-inspiring (and deeply ...

2. Zero Bones - As an invertebrate, the octopus has no skeletal system. It is comprised of soft tissue and muscle. The ...

An octopus at the Seattle Aquarium is making headlines for trying to bust out of its enclosures for a taste of the vertebrates life. The cephalopod scaled its enclosure Feb. 26 and stretched three ...

Octopuses are renowned for their instant color-changing abilities, a skill they use to outwit predators and surprise prey. Yet, the energy cost behind this extraordinary camouflage has remained a ...

The Aquarium of the Pacific's vice president of animal care, Nate Jaros, exclusively tells PEOPLE more about the facility's giant Pacific octopus, Ghost, who “continues to rest comfortably" in her ...