They change shape and color, and squirt ink. But they also will return your gaze, "as if they're scrutinizing you." ...

Octopuses are among the most neurologically complex invertebrates, famed for their extraordinary dexterity. Their eight arms allow them to capture hidden prey, communicate, explore, and even mate ...

While on a deep-sea expedition in the Galapagos in 2015, scientists found a golf-ball sized, short-armed blue octopus. In a recent study, they confirmed that it’s new to science. The newly described ...