Never challenge an octopus to a popping and locking dance off, that’s what my grandad always said. With eight worm-like arms, they exhibit extraordinary dexterity and control, and now scientists ...

Researchers in New Zealand saw a colorful blob on top of a shark’s head. When they looked closer, they realized it had eight arms.

Octopus arms are covered in numerous suckers—bowl-shaped cavities made of thick muscles that can grasp objects with a vice-like grip. The sides and edges of these suckers are rimmed with concentric ...

This was proven experimentally in 2011 when researchers tested whether an octopus could learn to guide one of its arms through a maze to reach food. The maze was designed so that the arm would have to ...