What is a Japanese spider crab? They may look like something from a 1950s sci-fi film, but Japanese spider crabs are gentle giants. And giants they are. Of the 60,000 species of crustaceans on ...

What is a hermit crab? There are over 800 species of hermit crabs worldwide, and almost all are ocean dwellers—though people are likely most familiar with the dozen semi-terrestrial species ...

The cuttlefish displays may somehow hack the visual system of their prey, which may mask their movement or convince the crabs they are harmless flora and fauna, rather than wily predators soon to ...