Tui De Roy / Blue-footed booby (Sula nebouxii), group of eight diving into sea to fish. Punta Gavilanes, Fernandina Island, Galapagos.

Tony Wu / Blue whale (Balaenoptera musculus indica) in Indian Ocean, Mirissa, Matara, Sri Lanka.

Chris & Monique Fallows / Mako shark (Isurus oxyrinchus) near surface, Cape Point, South Africa, March 2015

Cyril Ruoso / Fruit of a Dipterocarp tree (Dipterocarpaceae) seed falling to the ground, Way Kambas National Park, Sumatra, Indonesia.

Konstantin Mikhailov / Pallas's sandgrouse (Syrrhaptes paradoxus) group of four flying against blue sky, Gobi Desert, Mongolia, August.

Andy Rouse / Galapagos flightless cormorant (Phalacrocorax harrisi) diving for fish underwater, Galapagos.

Pete Oxford / Galapagos Penguin (Spheniscus mendiculus) diving through shoal of fish, Galapagos. Endemic.

Roger Powell / Small flock of Brent Geese (Branta bernicla) in flight..Texel Island, The Netherlands, Europe

Chris & Monique Fallows / Long-beaked common dolphin (Delphinus capensis) porpoising in still water, False Bay, South Africa

Ole Jorgen Liodden / Galapagos penguin (Spheniscus mendiculus) group underwater, Galapagos. Endemic.

Ole Jorgen Liodden / Campbell albatross (Thalassarche impavida) in flight, silhouetted at sunset, near Campbell Islands, Sub-Antarctic New Zealand. February.

Ole Jorgen Liodden / Nazca booby (Sula granti) in flight with rainbow behind, Galapagos.