Alex Mustard / Green sea turtle (Chelonia mydas) skeleton deep in a dark cave on a coral reef, turtles breath air and occasionally get lost in caverns in coral reefs and die drowning. Rock Islands, Palau, Micronesia...

Edwin Giesbers / African clawed frog (Xenopus laevis) at water's surface, captive, occurs in Africa.

Alex Mustard / Portrait of Sally lightfoot crab (Grapsus grapsus) in the surf. Floreana Island, Galapagos Islands, Ecuador. Tropical East Pacific Ocean.

Denis-Huot / Wildebeest (Connochaetes taurinus) unable to climb steep bank after swimming across Mara river during migration, Masai-Mara game reserve, Kenya.

Gary K. Smith / Four Mallard Duck (Anas platyrhynchos) drakes congregating on a female attempting to mate with her. This can result in the female drowning, UK, April. Sequence 2/2.

Gary K. Smith / Four Mallard Duck (Anas platyrhynchos) drakes congregating on a female attempting to mate with her. This can result in the female drowning, UK, April. Sequence 1/2.

Lou Coetzer / Young Impala (Aepyceros melampus) ram on the brink of disappearing under the water due to a crocodile attack, Chobe River, Botswana.

John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA

John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA

John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA

John Cancalosi / American toad (Bufo americanus) several males attempting to mate with one female, New York, USA

Kathryn Jeffs / Southern Type B Killer whales (Orcinus orca) hunting Weddell seal (Leptonychotes weddelli) dragging seal under water to drown it, Antarctica. Taken on location for BBC Frozen Planet series, January 2...

Christian Ziegler / Long-legged Bat (Macrophyllum macrophyllum) flying over water surface looking for dead and drowning insects, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Christian Ziegler / Long-legged Bat (Macrophyllum macrophyllum) flying over water surface looking for dead and drowning insects, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Gerrit Vyn / Royal Tern (Thalasseus maximus) juvenile oiled and waterlogged, as a result of the BP Deepwater Horizon oil leak, drowning in waters adjacent to a nesting colony on Queen Bess Island. Barataria Bay ar...

Gerrit Vyn / Royal Tern (Thalasseus maximus) juvenile oiled and waterlogged, as a result of the BP Deepwater Horizon oil leak, drowning in waters adjacent to a nesting colony on Queen Bess Island. Barataria Bay ar...

Mary McDonald / Carcasses of drowned Wildebeest {Connochaetes taurinus} swept downstream from a previous river crossing, Masai Mara GR, Kenya.

Todd Pusser / Transient killer whale attacking Grey whale calf. Monterey Bay, California, USA.

Mark Moffett / Carpenter Ant (Camponotus sp) group safely carry large insects up the slippery walls of a pitcher plant without getting trapped and drowning in the plant's digestive juices, Brunei, Borneo

Hermann Brehm / Female elk (Cervus elaphus) watch with concern as calf struggles in high water, Yellowstone River, Yellowstone NP, Wyoming, USA

Christian Ziegler / Long-legged Bat (Macrophyllum macrophyllum) flying over water surface catching dead and drowning insects, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Christian Ziegler / Long-legged Bat (Macrophyllum macrophyllum) flying over water surface catching dead and drowning insects, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Mark Moffett / Carpenter Ant (Camponotus sp) group safely carry large insects up the slippery walls of a pitcher plant without getting trapped and drowning in the plant's digestive juices

Sue Flood / Killer whale {Orcinus orca} drowning Grey whale calf {Eschrichtius robustus} CA USA

David Tipling / Blackbird (Turdus merula) fledgling, drowned in water butt in garden, UK. July.

Harry Collins / Nile crocodile (Crocodylus niloticus) catching and drowning Wildebeest (Connochaetes taurinus) as herd crosses Mara River, Maasai Mara, Kenya.

Charlie Hamilton-James / Large number of dead Blue wildebeest (Connochaetes taurinus) floating in Mara River after mass river crossing event, animals died from drowning, Masai Mara, Kenya, Africa. August, 2020.

Roland Seitre / Swarm of House mice (Mus musculus) drowning in water, Eyre Bird Observatory, Nullarbor, Western Australia.

Stefan Christmann / Drowned Emperor penguin (Aptenodytes fosteri) chick in melting sea ice. If the sea ice melts before the chicks moult into their waterproof feathers, they have to travel up ice ramps on to the ice shel...