Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) flock nesting on island, Lake Natron, Tanzania

Paul Souders/ Worldfoto / Lesser Flamingo (Phoenicopterus minor) nesting colony, Lake Natron, Tanzania

Paul Souders/ Worldfoto / Red algae and salt formations, Lake Natron, Ol Doinyo Lengai, Tanzania

Floris van Breugel / Alkali fly (Ephydra hians) underwater in protective air bubble, Mono Lake, California, USA.

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingo (Phoeniconaias minor) portrait, Lake Bogoria, Rift valley, Kenya, Africa

Juan Carlos Munoz,Juan Carlos Munoz / Two Lesser flamingos (Phoeniconaias minor) one feeding the other running, Lake Nakuru NP, Rift Valley, Kenya

Juan Carlos Munoz,Juan Carlos Munoz / Lesser flamingos (Phoeiconaias minor) feeding in still lake, Lake Nakuru, Rift valley, Kenya, Africa

Paul Souders/ Worldfoto / Streams and Lake Natron, Ol Doinyo Lengai, Tanzania

Paul Souders/ Worldfoto / Red algae and salt formations, Lake Natron, Tanzania

Paul Souders/ Worldfoto / Red algae and salt formations on alkaline Lake Natron, Tanzania

Floris van Breugel / Footprints of hungry birds in the mud flats along Mono Lake. Close to 2 million migratory birds pass through the area each year and stop to feed on the flies. Mono Lake, California, USA. September 20...

Floris van Breugel / Mono Lake showing salts left behind by evaporation. Mono Lake, California, USA. September 2015.