Zoo staff Sholpan Abdibekova and Tomiris, a five-year-old chimpanzee, watch a BBC environmental programme in a primate winter enclosure in Almaty, Kazakhstan. Reuters Archive. Photo by Shamil Zhumatov

Taking advantage of a weightless environment onboard the Earth-orbiting International Space Station, Expedition 34 Flight Engineer Chris Hadfield of the Canadian Space Agency juggles some tomatoes, which he probably considers to be among the more delicious components of a recent «package» that arrived from Earth, in this Handout photo courtesy of NASA. Reuters Archive. Photo by NASA

The Arizona-Mexico border fence is seen near Naco, Arizona,U.S.. Reuters Archive. Photo by Samantha Sais

U.S. Carnival cruise ship Adonia arrives at the Havana bay, the first cruise liner to sail between the United States and Cuba since Cuba’s 1959 revolution, Cuba, May 2, 2016.

Photo by Alexandre Meneghini

Odka performs in during a media preview of Zippos Cirque Berserk at the Peacock Theatre in London, England. Reuters Archive.

Photo by Stefan Wermuth

Performers from Organizacion Efimera of Spain take part in the contemporary circus production «Fecha de Caducidad» (Date of Expiry) during the Malta Arts Festival in Valletta, Malta. Reuters Archive.

Photo by Darrin Zammit Lupi

The Navas Brothers perform during the official Award Gala Evening of the 37th International Circus Festival of Monte Carlo in Monaco. Reuters Archive.

Photo by POOL New

An artist performs during the annual «Kiev fire fest» in Kiev, Ukraine. Reuters Archive.

Photo by Gleb Garanich

Javier performs at the family-owned circus Clavito in Managua, Nicaragua. Reuters Archive.

Photo by Oswaldo Rivas

A circus performer practises during a training session in Havana, Cuba. Reuters Archive.

Photo by Alexandre Meneghini

Samuel Amador, 8, practises during a training session at a circus school in Havana, Cuba. Reuters Archive.

Photo by Alexandre Meneghini

Acrobats perform during an event celebrating 50 years of the foundation of the Workers Circus Union in Peru, at La Tarumba circus tent, in Lima, Peru. Reuters Archive.

Photo by Mariana Bazo

An artist performs a fire stunt during a special preview as part of Christmas celebrations at the Ajanta circus in Kolkata, India. Reuters Archive.

Photo by Rupak De Chowdhuri

Girls, who are part of Afghan Mobile Mini Circus for Children (MMCC), participate in a juggling competition in Kabul, Afghanistan. Reuters Archive.

Photo by Ahmad Masood

People gather around a member of an Egyptian circus team during the Sanaa Summer Festival in Sanaa, Yemen. Reuters Archive.

Photo by Khaled Abdullah Ali Al Mahdi

Karin Albert fixes the hair of her daughter Lily Romanelli, 3, before posing her in an elephant-themed photo booth at Ringling Bros and Barnum & Bailey Circus’ «Circus Extreme» show at the Mohegan Sun Arena at Casey Plaza in Wilkes-Barre, Pennsylvania, USA. Reuters Archive.

Photo by Andrew Kelly

Pilot and jet-ski champion Franky Zapata hovers in the air on an IPU Flyboard Air hoverboard as he breaks the Guiness World Records for furthest flight by hoverboard, after covering a distance of 2,252.4 meters (7,389.76 ft) with an average speed of 50-60km/h, in Sausset les Pins near Marseille, France. Reuters Archive.

Photo by Jean-Paul Pelissier

Zoltan Veres of Hungary performs during an air show in Budapest, Hungary. Reuters Archive.

Photo by Laszlo Balogh

An arctic tern swoops down from the sky above the Farne Islands off the Northumberland coast, northern England. Reuters Archive.

Photo by Nigel Roddis

Restoration workers look for cracks in the head of the ‘Christ the Redeemer’ statue high above Corcovado mountain in Rio de Janeiro, Brazil. Reuters Archive. Photo by Gregg Newton

A general view shows a new departure gate at Orly airport, near Paris, France, April 14, 2016.

Photo by Benoit Tessier

A Bengal cat is seen during the Mediterranean Winner 2016 cat show in Rome, Italy, April 3, 2016.

Photo by Max Rossi

Marion Jones of the U.S. celebrates her win in the women’s 100m final at the Sydney Olympic Games next to Greece’s Ekaterini Thanou (R) and Chandra Sturrup (L) of the Bahamas, USA. Reuters Archive.Photo by Gary Hershorn

A masked reveller poses at San Marco Piazza during the Venice Carnival, Italy. Reuters archive.Photo by Alessandro Bianchi