Thailand's Patsapong Amsam-ang waits under an umbrella during a break due to heavy rains in the men's pole vault final during the 32nd Southeast Asian Games (SEA Games) in Phnom Penh on May 8, 2023. (Photo by Mohd Rasfan/AFP Photo)

The Knights of Middle England equestrian stunt display team perform ahead of the first match on July 13, 2024. The British Beach Polo Championships, or “sand polo”, returns to the exclusive Sandbanks peninsula near Poole, Dorset. Spectators can appreciate the horsemanship, speed and gladiatorial nature of polo at the largest beach polo event in the world. (Photo by Max Willcock/Bournemouth News)

An Icelandic mare and her foal stand on a meadow at a stud farm in Wehrheim near Frankfurt, Germany, Tuesday, June 17, 2025. (Photo by Michael Probst/AP Photo)

Uzbekistan's Javokhir Sindarov in action against Hans Niemann of the U.S. during the Diving Chess Competition in Cape Town, South Africa, on December 4, 2025. (Photo by Esa Alexander/Reuters)

British actress and humanitarian Audrey Hepburn, 1955. Jumpology. (Photo by Philippe Halsman)

A pug dressed as Yoda from the movie Star Wars walks along the runway at the 9th Annual Pug Parade on February 25, 2006 in Bradenton, Florida. 117 pugs competed for 10 prizes in 6 categories. Proceeds from the event benefit the Sarasota County Humane Society. (Photo by Phillippe Diederich/Getty Images)

A spotless GWR (Great Western Railway) locomotive, the “Royal Sovereign” waiting to carry Queen Victoria's coffin. (Photo by Hulton Archive/Getty Images). 28th January 1901

Global wildlife populations will decline by 67% by 2020 unless urgent action is taken to reduce human impact on species and ecosystems, warns the biennial Living Planet Index report from WWF (World Wide Fund for Nature) and ZSL (Zoological Society of London). From elephants to eels, here are some of the wildlife populations most affected by human activity. Here: The maned wolf is among the large mammals in the Brazilian Cerrado that are threatened by the increasing conversion of grasslands into farmland for grazing and growing crops. (Photo by Ben Cranke/Nature Picture Library/Alamy Stock Photo)