A common octopus (Octopus vulgaris) swims off Croatia in the Mediterranean Sea. (Reinhard Dirscherl/ullstein bild via Getty Images) We named him Squirt — not because he was the smallest of the 16 ...

Most complex organisms have a permanent hole for excreting waste. (Though there are exceptions, like the warty comb jelly, which forms an anus only when nature calls.) In bipeds and quadrupeds, the ...

On May 8 new nature documentary Octopus! was released on Prime. The underwater documentary, produced and narrated by Phoebe Waller-Bridge, tells the fascinating story of an octopus’ incredible journey ...

Jenny Evans / Getty Images Octopuses are capable of sophisticated tasks, from solving puzzles to decorating their dens to remembering people's faces. So when a company in Spain announced that it ...

Blending in with your surroundings is a crucial (and fascinating) skill in the animal kingdom, which is why many animals can change colors on demand. Chameleons, seahorses, and octopuses can all do it ...