How can the soft bodies of coleoid cephalopods so aptly hide in their environment? Why must they? What cells and specialized organs make such crypsis possible for one of the older evolutionary ...

A new study has revealed that common cuttlefish (Sepia officinalis) are capable of delayed gratification, a trait previously thought to be exclusive to intelligent vertebrates. Researchers adapted the ...

But figuring out exactly how many species have been found so far is a bit tricky. Like modern cephalopods, ammonites displayed sexual dimorphism, which is the noticeable difference in appearance ...

Mating happens at arm’s length for the four species of these cephalopods ... and spreads the sperm out over the egg bundle. Another unusual aspect of the blanket octopus: It’s immune to ...

The vampire squid doesn’t suck blood; instead, it eats detritus that falls into the twilight zone from shallow waters, and it is the only cephalopod known to do so. Located within the twilight zone is ...