Nick Upton / Geoff Way of the Environment Agency counting European eel (Anguilla anguilla) elvers using an eel pass beside a weir on a drainage channel on the Somerset Levels by reviewing remote infra red video fo...

Doug Perrine / Whale researcher Ken Balcomb photographs southern resident Killer whales / Orca (Orcinus orca) from a superpod passing by his research boat, off southern Vancouver Island, British Columbia, Strait of...

David Tipling / Wandering albatross (Diomedea exulans) survey team checking islet supporting small albatross colony near Weddell Point on South Georgia, January 2015

David Tipling / Wandering albatross (Diomedea exulans) survey team checking islet supporting small albatross colony near Weddell Point on South Georgia, January 2015

Alex Hyde / Photographer Alex Hyde identifying moths attracted to a UV light trap at night in the rainforest, Cordillera de Talamanca mountain range, Caribbean Slopes, Costa Rica. May 2014

Alex Hyde / Photographer Alex Hyde identifying moths attracted to a UV light trap at night in the rainforest, Cordillera de Talamanca mountain range, Caribbean Slopes, Costa Rica. May 2014

Paul D Stewart / Photograph of John Thomas Gulick (March 13, 1832 - April 14, 1923) an American missionary and naturalist from Hawaii. He performed some of the first modern evolutionary studies, starting with a colle...

Eric Baccega / Students of different ages studying in the same class, Etanga School, Kaokoland, Namibia. October 2015

Brent Stephenson / Dr Phil Battley from Massey University weighing a Bar tailed godwit (Limosa lapponica) as part of the migration studies, Miranda, Firth of Thames, New Zealand, October 2004. Model released.

Melvin Grey / File-eared tree frog (Polypedates otilophus) Kuala Belalong Field Studies Centre, Brunei. Controlled conditions.

Enrique Lopez-Tapia / Christian worshiper in traditional white robes, resting against wall, Bet Medhane Alem (part of the northwestern group of churches in Lalibela). UNESCO World Heritage Site. Lalibela. Ethiopia, Decembe...

Enrique Lopez-Tapia / Christian worshiper studying at Bet Medhane Alem (part of the northwestern group of churches in Lalibela). UNESCO World Heritage Site. Lalibela. Ethiopia, December 2014.