These adorable images of new born polar bears are bound to warm the hearts of even the biggest Ba-humbugs this Christmas. The stunning collection of photographs, taken over the space of ten years, manage to capture the tender bond between both mother and child as they emerge from their den for the very first time. Here: a Polar bear with its cub. (Photo by David Jenkins/Caters News)

Indian passengers travel on a local train in New Delhi, India, October 2017. Constructed in 1975 to bypass the crowded and passenger-heavy Old Delhi, New Delhi and Hazrat Nizamuddin railway stations, the railway line once used to be the lifeline of the capital. (Photo by Ankur Dutta/Barcroft Media)

US Vogue’s top fashion editor works with photographers to inject style with sci-fi and fantasy. A new book, “Stoppers: Photographs from My Life at Vogue” by Phyllis Posnick and Vogue’s chief editor, Anna Wintour, highlights the results. Here: Surburban Woman #10, Mountainville, New York, August 2006. (Photo by Steven Klein)

A woman cools off from the extreme heat from an opened fire hydrant in Brooklyn, New York on July 2, 2018. The highest temperature reached 35 degrees Celsius in New York City on Monday as a result of a prolonged heat wave. (Photo by Shannon Stapleton/Reuters)

Workers sleep on a railway track under repair in New Delhi, India, June 15, 2018. (Photo by Saumya Khandelwal/Reuters)

A hyena kisses his own reflection while appearing to walk on water. (Photo by Jake De Wet/Caters News Agency)

Revellers out in Blackpool, Lancashire, United Kingdom on New Year's Eve, December 31, 2018. (Photo by Lorne Campbell/Guzelian)

Chrissy Teigen and daughter Luna Stephens seen on the streets of Manhattan on June 24, 2019 in New York City. (Photo by James Devaney/GC Images)