Some animals live decades, but this ancient creature has survived for over 500 years—and it’s still growing! Scientists are ...

An amateur fossil hunter has uncovered a piece of animal vomit which dates back 66 million years on a beach in Denmark.

Cephalopods may have the oldest sex chromosomes of any animal, according to a new discovery in the octopus genome.

Researchers have identified a sex chromosome in the California two-spot octopus. This chromosome has likely been around for 480 million years, since before octopuses split apart from the nautilus on ...

The octopus just revealed another one of its secrets: what determines its sex. University of Oregon researchers have ...