The summer months bring low morning tides along the California coast, providing an opportunity to see one of the state’s most unusual inhabitants, sea slugs. Also called nudibranchs, many of these ...

Size refugia from competition, whereby one organism may grow too large to subsequently be overgrown by a superior spatial competitor, have rarely been documented in marine benthic communities.

Rather than going to all that bothersome effort of having to catch their own dinner, researchers have found that some sea slugs are much sneakier. They’ll wait until the organisms they live on, known ...

There's nothing ruder than taking someone's food without asking—except maybe waiting until they're finished eating and consuming them whole so you can get those extra calories. As Gizmodo reports, ...

A review of the hydroids of the family Clathrozonidae with description of a new genus and species from Japan Smithsonian Libraries and Archives ...

MR. NUTTING may be congratulated on the completion of the third part of his great monograph on American Hydroids. He has a generous conception of America, and includes in his list such species as ...