How do octopuses mate in the dark? A new study shows how the hectocotylus arm uses progesterone receptors to "taste" for a mate.

In this study, the authors use microCT to image an intact hatchling octopus and segment major organ systems, including the vascular, respiratory, digestive, and nervous systems. The resulting dataset ...

If forced to choose one descriptor for the octopus, the best word may be "otherworldly." These truly amazing marine animals ...

Source: National Marine Sanctuaries, via Wikimedia Commons. Public domain. In a new study, researchers from the University of Queensland used advanced magnetic resonance imaging (MRI) scans to ...

Cephalopods – including octopuses, cuttlefish and squid – possess one of the most sophisticated neural systems among invertebrates, which supports a wide array of complex behaviours. Their neural ...

Octopuses may have big brains because of environmental – not social – factors. Large brains in mammals are generally thought to be linked to social behaviour, an idea known as the social brain ...

In the dark depths of the sea, where vision is difficult, meeting a mate becomes a problem. Octopuses, which are highly ...