Fighters Holly “The Lotus” Mei (L) and Teri “Feisty Fists” London train for the upcoming 'Lingerie Fighting Championships 22: Costume Brawl I' at DXG Self Defense on October 25, 2016 in Las Vegas, Nevada. The event is scheduled to feature eight bouts at 4 Bears Casino & Lodge on October 29, 2016 in New Town, North Dakota. (Photo by Ethan Miller/Getty Images)

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)

Lightning from a tornadic thunderstorm passing over Clearwater, Kansas strikes at an open field May 19, 2013. A massive storm front swept north through the central United States on Sunday, hammering the region with fist-sized hail, blinding rain and tornadoes, including a half-mile wide twister that struck near Oklahoma City. News reports said at least one person had died. (Photo by Gene Blevins/Reuters)

Participants take part in the so-called “Bearded Men” parade in the streets of Slawatycze village, eastern Poland, 29 December 2023. “Bearded Men” is an old local tradition, passed from generation to generation. In last three days of December, costumed citizens of Slawatycze say goodbye to the old year and make wishes for the New Year. (Photo by Wojtek Jargilo/EPA/EFE)

Men ride a motorcycle carrying a fan in Havana, Cuba, Thursday, April 6, 2023. As Cuban citizens deal with the country´s many problems like electricity blackouts, empty stores and long lines for almost any service, they also have to manage with the lack of public transportation as there is a shortage of working buses and few privately owned vehicles. (Photo by Ramon Espinosa/AP Photo)

Athletes compete in a log carrying relay race event at Peruibe beach during the Indigenous Games, near the Tapirema community of Peruibe, Brazil, Sunday, April 23, 2023. Hundreds of Indigenous athletes gather this weekend in the south of Sao Paulo state to hold their version of the Olympic Games. They will compete for medals in archery, tug of war, athletics, Indigenous wrestling and other sports. (Photo by Andre Penner/AP Photo)

Clowns Perlita and Tapetito, wearing protective gear amid the new coronavirus pandemic, speak with resident Enrique Zeballos as they arrive to disinfect his home free of charge, in El Alto, Bolivia, Friday, September 11, 2020. The lack of traditional employment for the clowns due to the pandemic has led them towards other avenues of making money. But for people with limited income they provide their disinfection services free of charge. (Photo by Juan Karita/AP Photo)

A woman with a large cross decorated with a Jesus figure during the use of water cannons by the police after heterogeneous groups around Corona deniers, conspiracy theorists and right-wing extremists called for blocking access to German Government Buildings in Berlin, Germany on November 18, 2020. Both the Bundestag and the Bundesrat vote on planned new regulations of the infection protection law. (Photo by Jan Scheunert/ZUMA Wire/Rex Features/Shutterstock)