Tony Wu / Humpback whale (Megaptera novaeangliae australis) female, stationary with calf heading to surface for breath of air. Vava'u, Tonga, South Pacific.

Olga Kamenskaya / Vehicles parked on ice on the surface of Lake Baikal, Siberia, Russia, March 2008.

Sam Hobson / Urban Red fox (Vulpes vulpes), adult male (dog). Bristol, UK. August.

Olga Kamenskaya / Car on thick Lake Baikal ice, Lake Baikal, Siberia, Russia, March. Property released.

Shattil & Rozinski / Juvenile American black bear (Ursus americanus), brown phase, looking for food in a car, Denver, Colorado, USA, July.

Juergen Freund / Men on a fishing device called ?Bagan?, a stationary outrigger boat, with a net between outriggers and strong light at night to attract anchovies and scad. Cenderawasih Bay, Papua Province, Indonesia,...

Juergen Freund / Whale shark (Rhincodon typus) near a fishing device called ?Bagan?, a stationary outrigger boat, with a net between outriggers and strong light at night to attract anchovies and scad. The whale sharks...

Jack Dykinga / Least bittern (Ixobrychus exilis) juvenile standing still with beak up, portrait. Riparian Preserve at Water Ranch, Gilbert, Arizona, USA. July.

Sven Zacek / Great bittern (Botaurus stellaris) standing with head up, camouflaged between surrounding reeds. Laanemaa, Western Estonia. March.

Alex Mustard / Whale shark (Rhincodon typus) botella 'bottle' feeding, by floating stationary, upright in the water and gulping in food, in the plankton rich, green waters of La Paz bay. La Paz, Baja California Sur,...

Alex Mustard / Head on view of the mouth of a whale shark (Rhincodon typus) botella 'bottle' feeding, by floating stationary, upright in the water and gulping in food, in the plankton rich, green waters of La Paz ba...

Alex Mustard / Whale sharks (Rhincodon typus) bottle feeding, by floating stationary, upright in the water and gulping in food, in the plankton rich, green waters of La Paz bay. La Paz, Baja California Sur, Mexico....

Jordi Chias / Mobula / Chilean devil ray (Mobula tarapacana) with remora (Remora brachyptera) and Amberjacks (Serila dumerilli) Santa Maria Island, Azores, Atlantic Ocean

Franco Banfi / Devilrays (Mobula tarapacana) two viewed from below, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean.

Franco Banfi / Devilray (Mobula tarapacana) swimming near the surface with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Devilrays (Mobula tarapacana) large group at the surface, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Scuba diver with Devilray (Mobula tarapacana), Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean

Michael Pitts / Devil rays (Mobula japonica) viewed from below, South Ari atoll, Maldives.

Nuno Sa / Manta Ray (Manta Birostris) and Devil Ray (Mobula tarapacana) in background, accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.

Luis Quinta / Devil ray {Mobula tarapacana} with remora, Azores, Atlantic

Alex Mustard / Box ray (Mobula tarapacana) swimming above USS Kittiwake shipwreck. Seven Mile Beach, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Pascal Kobeh / Sicklefin devil ray / Chilean devil ray (Mobula tarapacana) with two shark suckers (Remora remora) Azores, Atlantic Ocean.

Pascal Kobeh / Sicklefin devil ray or Chilean devil ray (Mobula tarapacana) with two shark suckers (Remora remora) Azores, Atlantic Ocean.

Pascal Kobeh / Sicklefin devil ray or Chilean devil ray (Mobula tarapacana) with two shark suckers (Remora remora) Azores, Atlantic Ocean.