Solvin Zankl / Baby Olive Ridley sea turtle (Lepidochelys olivacea) struggles against the swell to swim away from the beach where it hatched, Ostional, Costa Rica. October. Winner of the Underwater category of the G...

Erlend Haarberg / Air bubbles frozen in ice, Helgeland, Nordland, Norway, November

Graham Eaton / Underwater landscape within a mountain stream, showing water turbulence, Snowdonia NP, Gwynedd, Wales, UK, December

Graham Eaton / Underwater view of a mountain lake with frozen surface, Llyn Idwal, Snowdonia NP, Gwynedd, Wales, UK, December

Chadden Hunter / Emperor penguins (Aptenodytes forsteri) males dive through openings in the sea ice to take their first swim in over 4 months as they have spent the bleak winter incubating their eggs. Cape Washington,...

Sven Zacek / Frozen bubbles captured in ice on the surface of lake. South Estonia, Europe, January 2008.

Nuno Sa / Blue Shark (Prionace glauca) at the sea surface. Santa Maria, Azores, August.

Graham Eaton / Under the ice scene of freshwater frozen lake. Llyn Dinas, Snowdonia, Wales, December 2010.

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) expeling air and water from mouth through baleen plates after engulfing part of a baitball of Sardines (Clupeidae) with California sea lion (Tetreapturus au...

Alex Mustard / Silhouette of a New Zealand fur seal (Arctocephalus forsteri) diving underwater, Tasmania, Australia.

Sergey Gorshkov / Bubbling geothermal mud pool, Kamchatka, Russia

Doug Perrine / Bryde's whale (Balaenoptera brydei / edeni) expelling air and water from mouth through baleen plates after engulfing part of a baitball of Sardines, Sardinops sagax, off Baja California, Mexico (Easte...

Edwin Giesbers / Air bubbles trapped in ice, the Netherlands

Jeff Rotman / Snorkeler interacting with wild Bottlenose Dolphin (Tursiops truncatus), Nuweiba, Egypt - Red Sea. Model released Model released.

Doug Allan / Emperor penguins {Aptenodytes forsteri} diving, Cape Washington, Antarctica. Freeze Frame book plate page 133.

Kim Taylor / Water beetles (Dytiscus marginalis) and (Acilius sulcatus) clustered around an air bubble trapped beneath the ice of a frozen pond, digitally enhanced, Surrey, England

Doc White / Blue Whale (Balaenoptera musculus) feeding at sea surface, releasing bubbles after a lunge. California, USA.

Nuno Sa / Sperm Whale (Physeter macrocephalus) female and calf. Sao Miguel Island, Azores, July.

Nuno Sa / Whale Shark (Rhincodon typus) accompanied by Pilot Fish (Naucrates ductor). The biggest fish in the world has only started to visit the Azores in the past three years due to water temperature rise. Sa...

Jan Hamrsky / Water Beetle (Rhantus suturalis: Dytiscidae) with breathing bubble visible under carapace. Europe, May.

Jan Hamrsky / Water Beetle (Hyphydrus ovatus: Dytiscidae) with breathing bubble on abdomen. Europe, May.

Jan Hamrsky / Water Beetle (Platambus maculatus: Dytiscidae) with breathing bubble visible on abdomen. Europe, July.

Piotr Naskrecki / Japanese Horseshoe Crab (Tachypleus tridentatus) flushing water backwards under its carapace to clear intake channels for breathing, Japan

Murray Cooper / Water boiling in pan

Philippe Clement / Lesser / Grooved diving beetle (Acilius sulcatus) with bubble of air trapped between the body and the wing cases, Belgium, Captive

Philippe Clement / Lesser / Grooved diving beetle (Acilius sulcatus) with bubble of air trapped between the body and the wing cases, Belgium, Captive

Stephen Dalton / Water spider (Argyroneta aquatica) underwater, in air bubble bell chamber, Argyronetidae

Stephen Dalton / Water spider (Argyroneta aquatica) underwater, with air bubble bell chamber, Argyronetidae

Stephen Dalton / European water spider {Argyroneta aquatica} underwater in air bubble bell, UK, Argyronetidae

Stephen Dalton / European water spider {Argyroneta aquatica} underwater in air bubble bell, UK, Argyronetidae

Stephen Dalton / European water spider {Argyroneta aquatica} underwater with its diving bell bubble of air, UK, Argyrometidae

Michael Durham / Rio Grande Leopard Frog (Rana berlandieri) jumping into water, Texas

Nature Production / Diving Beetle {Eretes sticticus} with an air bubble at the end of its tail, Japan

Willem Kolvoort / Water beetle (Acilius sulcatus) on Canadian waterweed (Elodea canadensis), beetle has an air bubble under his back-shield, sand winning pit, Holland

Willem Kolvoort / European water spider (Argyroneta aquatica) underwater in air bubble in garden pond, Holland

Kim Taylor / A soap bubble floating in the air - colour refraction on surface

Kim Taylor / Large drop of water creates bubble above hemispherical depression.

SINCLAIR STAMMERS / Water spider (Argyroneta aquatica) showing air bubble. England, UK, Europe

Heidi & Hans-Juergen Koch / Water Spider (Argyroneta aquatica) emerging from its underwater air bell which is fastened to aquatic plants, native to Europe

Heidi & Hans-Juergen Koch / Water Spider (Argyroneta aquatica) in its air-bell fastened to water plants, in the top of the air-bell is an egg-filled cocoon, native to Europe

Heidi & Hans-Juergen Koch / Northern Leopard Frog (Rana pipiens) jumping into water, native to North America

SINCLAIR STAMMERS / Water spider underwater with air bubble, UK

Onne van der Wal / Boy blowing bubbles underwater. Model released.

Colin Monteath / Boiling mud erupts from thermal pool, Wai-O-Tapu Thermal Wonderland, Rotorua, North Island, New Zealand

Norbert Wu / Wave breaking as seen from underwater, North Shore, Oahu, Hawaii

Norbert Wu / Wave breaking as seen from underwater, North Shore, Oahu, Hawaii

Nature Production / Diving Beetle {Eretes sticticus} with air bubble on its tail, Nara, Japan

Flip Nicklin / Humpback Whale (Megaptera novaeangliae) seen through water surface blowing bubbles, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS permit 987