A model has her hair sprayed backstage at the Ukrainian Fashion Week in Kyiv, Ukraine on August 31, 2020. (Photo by Gleb Garanich/Reuters)

An orphaned giraffe nuzzling a wildlife keeper at Sarara camp in Kenya, one of 70 pictures being sold by Prints for Nature (printsfornature.com) to raise money for work by the Conservation International charity. This giraffe was rehabilitated and returned to the wild, as a number of others have done before him. Right now, giraffe are undergoing what has been referred to as a silent extinction. Current estimates are that giraffe populations across Africa have dropped 40 percent in three decades, plummeting from approximately 155,000 in the late 1980s to under 100,000 today. (Photo by Ami Vitale/National Geographic)

A Palestinian clown on stilts walks on a street amid the outbreak of the coronavirus disease (COVID-19), in Gaza City on November 20, 2020. (Photo by Suhaib Salem/Reuters)

Apollinariia Panfilova and Dmitry Rylov of Russia perform in the Pairs Short Program during day one of the ISU Grand Prix of Figure Skating Rostelecom Cup at Megasport Arena on November 20, 2020 in Moscow, Russia. (Photo by Evgenia Novozhenina/Reuters)

U.S. President Donald Trump holds news conference on the coronavirus outbreak at the White House in Washington, U.S., February 26, 2020. (Photo by Carlos Barria/Reuters)

Ethnic San Chi women dressed in traditional costumes play a friendly football match as part of the Soong Co festival celebrations in northern Vietnam's Quang Ninh province on April 24, 2021. (Photo by Nhac Nguyen/AFP Photo)

Steam comes out of the chimneys of the coal-fired power station Neurath near the Garzweiler open-cast coal mine in Luetzerath, Germany, Monday, October 25, 2021. The climate change conference COP26 will start next Sunday in Glasgow, Scotland. (Photo by Michael Probst/AP Photo)

Photographer Gregg Segal travelled the world to document children and the food they eat in a week. Partly inspired by the increasing problems of childhood obesity, he tracked traditional regional diets as yet unaffected by globalisation, and ironically, found that the healthiest diets were often eaten by the least well off. (Photo by Gregg Segal/The Guardian)