But octopus food choices aren't just a curiosity. In addition to helping us learn what to feed these animals in captivity, "octopuses play an important role in the marine environment as both predators ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Florida stone crabs (Menippe mercenaria) are ...

Crabs can't swim all that fast, so nature has granted them defensive traits that make them the impenetrable forts of the underwater world. Their steel-tough exoskeletons have jagged points that make ...