Piotr Naskrecki / Beetle predating on snail who responds with defensive bubbles, Atewa Range, Ghana

Tony Wu / Ama diver searching for shellfish including Sea snails (Turbo sazae) amongst seaweed. Hose supplies diver with air and enables communication with husband at surface. Futo Harbour, Izu Peninsula, Honsh...

Tony Wu / Ama diver searching for shellfish including Sea snails (Turbo sazae) amongst seaweed. Hose supplies diver with air and enables communication with husband at surface. Futo Harbour, Izu Peninsula, Honsh...

Tony Wu / Ama diver searching for shellfish including Sea snails (Turbo sazae) amongst seaweed. Hose supplies diver with air and enables communication with husband at surface. Futo Harbour, Izu Peninsula, Honsh...

Tony Wu / Ama diver searching for amongst seaweed with basket almost full with Sea snails (Turbo sazae). The basket can be exchanged by her husband at the surface. Futo Harbour, Izu Peninsula, Honshu, Japan. Ju...

Franco Banfi / Headshield slugs (Micromelo undatus) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Juergen Freund / Bubble snail (Hydatina physis) on white background, Batanagas, Philippines.

Juergen Freund / Bubble snail (Hydatina physis) Batangas, Philippines.

Juergen Freund / Head-shielded slug (Philinopsis cyanea) Batangas, Philippines

Simon Colmer / White / Pacific nut sheath bubble {Atys naucum}

GEORGETTE DOUWMA / Violet / Bubble raft snail hangs from sea surface {Janthina janthina} South Africa

GEORGETTE DOUWMA / Violet / bubble raft snail hangs upsidedown from sea surface suspended by raft of mucous coated bubbles secreted by foot {Janthina janthina} Cape, South Africa.