A bird swoops in to deliver its food to its chick, ramming it deep into its mouth while in flight. The photos of the swallows were captured by Kelvin Leong in Hampstead Wetlands Park, Singapore in July 2023. (Photo by Kelvin Leong/Solent News & Photo Agency)

These Northern Lights “rainbows” have turned the sky greener than the Earth below. Vitaly Istomin, 26, spent several nights in freezing conditions under the stars in northern Russia’s Khibiny Mountains to capture the aurora’s “rainbows”. (Photo by Vitaly Istomin/Caters News Agency)

“Only the most intrepid urban explorers cross the tattered ruins of the old Iron Curtain to endure the excessive bureaucracy, military paranoia and freezing winds of the East to hunt for the ghosts of an empire. Rebecca Litchfield is one who couldn't resist the haunting allure of the ruins of the Soviet Union”. – Yahoo News. Photo: Hungary, MAV 424 Steam Train. (Photo by Rebecca Bathory)

Chris Renshaw has recently been awarded the 2015 Africa Geographic “Photographer of the Year” award. Chris tells that his love “for anything wild and adventurous came from a deep rooted attachment to the African continent. This image shows that timing, a bit of anticipation, and luck allowed this incredible moment in time to be captured”. (Photo by Chris Renshaw)

A woman reacts as she joins around a thousand New Year swimmers, many in costume, braved freezing conditions in the River Forth in front of the Forth Rail Bridge during the annual Loony Dook Swim on January 1, 2013 in South Queensferry, Scotland. Thousands of people gathered last night to see in the New Year at Hogmanay celebrations in towns and cities across Scotland. (Photo by Jeff J. Mitchell)

These stunning photos act as postcards for one photographer, who has traveled all over the globe, braving freezing temperatures to create the ultimate time lapse video. Photographer Dustin Farrell, 36, spent four years perfecting his technique and traveling all over the world in his quest to capture the most beautiful time lapses of nature. (Photo by Dustin Farrell/Caters News)

A competitor in fancy dress emerges from muddy water during the Tough Guy Challenge endurance race on January 29, 2012 in Telford, England. Every year thousands of people run the 8 mile assault course which involves freezing temperatures, fire and ice. (Photo by Michael Regan/Getty Images)

The couple freedivers Eusebio and Christina Saeyns de Santamaria, known as «One ocean One breath», exploring the pond around the world, plunging into the water deep down in one breath.