In a groundbreaking discovery, octopuses have demonstrated an ability previously thought exclusive to vertebrates: using ...

California two-spot octopuses learned to track prey they could see only as a mirror reflection, then moved toward the actual hidden location of the target rather than lunging at the glass. That ...

Jules Casey (@onebreathdiver) is an award-winning underwater photographer based in Australia, and she recently encountered an animal she had been hoping to see in the wild for more than a decade: a ...