With names like “knobby rams-horn,” “masked duskysnail” and “Hoko vertigo,” Pacific Northwest mollusks may have an amusing image, but they’re also some of the most intriguing invertebrates in the ...

A diversity of invertebrates live within the mussel bed at Dillon Beach, California. Top row from left: isopod (Pentidotea wosnesenskii), dogwhelk (Nucella canaliculata), sea spider ...

They include invertebrates which have soft bodies such as jellyfish, worms and molluscs (like slugs and squids). There are also groups of invertebrates with hard bodies, such as insects ...