These five research-backed insights show why the octopus remains one of the most extraordinary minds in the animal kingdom.

Ursula only takes seconds to solve complex challenges. What's more amazing is that she's actually a two- year old octopus with an extraordinary knack for solving puzzles. Studies have shown that the ...

Octopuses. They’re the little aquatic aliens that haunt our dreams, and, on rare occasion, our toilets. But the squishy octopods are more than just aquatic-type nightmare fuel. They’re also a source ...

Find the answer for Part of an octopus tentacle from the people who brought you the USA TODAY Daily Crossword Puzzle.

Seek and Find puzzles are mind-bending images that play with colours, light, and patterns to confuse even the sharpest eyes. Why are we so easily fooled by puzzles? Our brains are incredible, but they ...

This week’s question: A Swedish man ordered a live octopus from a seafood distributor and then spent six months teaching it ...