For centuries the Highlands peoples of Papua New Guinea fought over land, women and pigs. Sorcery and battle skills could elevate a clan to Bigmanship, where the bigger the “presentation”, the bigger the man. Clans therefore would paint their bodies and create fearsome masks as part of their psy. Here: These are the terrifying tribe of “mudmen” from a remote part of Papua New Guinea. (Photo by Jeremy Hunter/Exclusivepix Media)

The tusk of a woolly mammoth that lived some 18,000 years ago, from which researchers sequenced the extinct mammal's entire genome, is seen in northeastern Siberia in this photo from 2015. (Photo by Love Dalen/Handout via Reuters)

Hundreds of flamingos take flight in the Rift Valley in East Africa early September 2024. The birds gather in the region’s saline lakes to eat the blue-green algae that grows in abundance. The red-orange pigment in the algae is what gives them their distinctive pink plumage. They also use the site to breed. (Photo by Alexandre and Chloe Bes/Naturagency/Solent News)

A model walks the runway at the Agatha Ruiz de la Prada fashion show during the Mercedes Benz Fashion Week Madrid at Ifema on September 12, 2024 in Madrid, Spain. (Photo by Juan Naharro Gimenez/Getty Images)

An athlete takes part in a warm-up around the track of the National Stadium in Tokyo on September 12, 2025, ahead of the World Athletics Championships. (Photo by Kirill Kudryavtsev/AFP Photo)

An Emirati child plays with an airplane model near the venue of the Mazayin Dhafra Camel Festival, on December 20, 2012 near the city of Madinat Zayed, 150 kms west of Abu Dhabi. The festival, which attracts participants from around the Gulf region, includes a camel beauty contest, a display of UAE handcrafts and other activities aimed at promoting the country's folklore. (Photo by Karim Sahib/AFP Photo)

A Selkirk Rex cat is one of more than 400 breeds of cats being presented at the World Cat Federation two-day show in Dortmund, Germany, on April 21, 2013. (Photo by Frank Augstein/Associated Press)