Stefan Christmann / Milky way and moonbow halo during polar night. Above Neumayer-Station III, Alfred-Wegener-Institut research station, Atka Bay, Antarctica. June 2017.

Stefan Christmann / Sunset with beams of light shining through Neumayer-Station III, Alfred-Wegener-Institut research station. Atka Bay, Antarctica. January 2017.

Stefan Christmann / Stars and milky way over Neumayer-Station III, Alfred-Wegener-Institut research station. During full moon. Atka Bay, Antarctica. April 2017.

Nuno Sa / Long snouted seahorse (Hippocampus guttulatus) in captive breeding laboratory at University of Algarve, Portugal. June 2010. Overall winner of the Underwater Photographer of the Year competition 2015.

Doug Gimesy / Scientist examining river water to tests for platypus DNA. Cesar Research Laboratory, Melbourne, Victoria, Australia. June, 2017.Model released.

Tony Wu / Smooth lumpsucker (Aptocyclus ventricosus) juvenile aged one year. Photographed on release into wild, raised at research facility. Hokkaido, Japan. May.

Tony Wu / Smooth lumpsucker (Aptocyclus ventricosus) juvenile aged one year. Photographed on release into wild, raised at research facility. Hokkaido, Japan. May.

Tony Wu / Smooth lumpsucker (Aptocyclus ventricosus) juvenile aged one year. Photographed on release into wild, raised at research facility. Hokkaido, Japan. May.

Loic Poidevin / Observatory of Gornergrat, Mont Cervin, Matterhorn, Swiss Alps, Valais, Switzerland, September 2018.

Juergen Freund / Dr. Alex Cheesman examining leaf samples whilst studying phloem flux in Daintree Rainforest Observatory, Queensland, Australia February 2015

Juergen Freund / Dr. Alex Cheesman with supervisor Dr Lucas Cernusak, examining leaf samples whilst studying phloem flux in Daintree Rainforest Observatory, Queensland, Australia February 2015

Juergen Freund / Dr. Alex Cheesman examining leaf samples whilst studying phloem flux in Daintree Rainforest Observatory, Queensland, Australia February 2015