Octopuses have a complex nervous system and excellent sight, and are among the most intelligent and behaviourally diverse invertebrates. Octopuses inhabit various ocean habitats, including coral reefs, …

Oct 31, 2025 · Octopuses are exclusively marine mollusks that constitute the order Octopoda within Cephalopoda, a class that also includes squids, cuttlefish, and nautiloids. They are easily recognized …

Nov 20, 2025 · An octopus is any eight-armed cephalopod mollusk of the order Octopoda. The true octopuses are members of the genus Octopus, a large group of widely distributed shallow-water …

Feb 12, 2025 · Discover interesting facts about octopuses, an intelligent group of cephalopods with three hearts, eight arms and a reputation for causing mischief in oceans around the world.

Octopuses are found in every ocean of the world and along every coast of the United States. Octopuses live in coastal marine waters and spend much of their time in dens—small holes and crevices in …

There are around 300 species of octopus and they are found in every ocean. Most live on the seafloor, but some, like the paper nautilus, drift nearer to the surface. Octopuses mostly feed on...

Sep 22, 2024 · Octopuses are among the most unique, diverse, and intelligent marine invertebrates on Earth. Inhabiting environments from shallow shores to the dark, crushing depths of the deep sea, …

Octopuses have also been shown to play, an activity considered a sign of intelligence. Most octopus species only live between one and two years. Much of the short lifespan has to do with the octopus' …

Dec 17, 2024 · Explore the wonders of octopuses, squids, cuttlefish and other cephalopods with Science Friday activities! Relax with digital cephalopod coloring books, experiments modeling cuttlefish skin …

An octopus has blue blood and three hearts. But these aren't even the most astonishing things scientists have discovered about these beguiling marine animals. Here are some additional ways octopuses …