Every octopus carries three separate hearts, yet two of them go silent the instant the animal jets through open water. The ...

Octopuses run on a cardiovascular system unlike anything found in vertebrates: two branchial hearts force blood through the ...

More than just aquarium must-sees, octopuses are known for being highly intelligent creatures and, at times, even friends to humans. These connections are the subjects of the popular 2020 documentary ...

The octopus, one of Earth’s oddest and most enduring creatures – they were here before dinosaurs – is spotlighted April 21 with NatGeo’s eye-opening “Secrets of the Octopus.” These incredibly unique ...

We know that octopuses have awesome visual systems and super-sensitive suckers. We have even learned that they can hear. But little scientific attention has been paid to their sense of smell. "They ...