Researchers took 3-D printed reconstructions of fossil cephalopods to actual water tanks (including a swimming pool) to see how their shell structure may have been tied to their movement and lifestyle ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The vast majority of octopus species live ...

Sea butterflies flit through the ocean on gossamer wings, each species with a style of its own. These tiny marine snails, or thecosomes, migrate up to surface waters at night to feed and sink to ...