David Pattyn / Great crested grebe (Podiceps cristatus) adults courting and greeting each other to confirm their bond. Even with the young chicks already out they often show courtship behavior to each other, Valkenh...

Jack Dykinga / Aurora Borealis reflected in Polar Lake, conifers silhouetted at edge. Near Great Slave Lake, Northwest Territories, Canada. September 2018.

Espen Bergersen / Time lapse of people emptying plastic bags full of marine litter to show what has been collected during a beach clean, Tussoya, Troms, Norway, 2017.

Ben Hall / Marine iguana (Amblyrhynchus cristatus) on rock taken with slow shutter speed to show motion in the water, Galapagos islands, May.

Enrique Lopez-Tapia / Woman with stick at the Jumping of the bulls Hamer ceremony. This Hamer ceremony, is a right of passage into manhood for Hamer boys. During the ceremony young female relatives of the boys beg to be wh...

Enrique Lopez-Tapia / Man feeding Hyaenas (Crocuta crocuta) at night in Harar City, this has been a tradition for several centuries, and has now become a show for tourists. Ethiopia, November 2014

Enrique Lopez-Tapia / Man feeding Hyaenas (Crocuta crocuta) at night in Harar City, this has been a tradition for several centuries, and has now become a show for tourists. Ethiopia, November 2014

David Tipling / Tribal performers from Hagen at Sing-sing, Mount Hagen Show in Western Highlands Papua New Guinea. Headress contains Papuan Lorikeet birds and King of Saxony plumes. August 2011

David Tipling / Tribal performers from the Anglimp District in Waghi Province, performing at a Sing-sing - Hagen Show, Western Highlands, Papua New Guinea, August 2011

David Tipling / Tribal performer from the Anglimp District in Waghi Province Western Highlands Papua New Guinea performing at a Sing-sing, Hagen Show Western Highlands Papua New Guinea.With bird of paradise plumes in...

David Tipling / Member of Sing-sing group from Tambul, Western Highlands at Mount Hagen Show, Papua New Guinea, August 2011