An undated handout picture made available on 29 April 2016 by the Toronga Zoo shows a baby echidna making a remarkable recovery after being attacked by chickens in a family's backyard at the Taronga Zoo in Sydney, Australia. (Photo by EPA/Taronga Zoo)

A participant takes part in the annual Jack In The Green parade involving hundreds of costumed revellers joining a four hour procession culminating in the traditional “slaying” of a Jack character to “unleash the spirit of summer” on the May Day week end, in Hastings, southern Britain, May 2, 2016. (Photo by Toby Melville/Reuters)

Iraqi Kurdish female fighter Haseba Nauzad looks through a pair of binoculars during a deployment near the frontline of the fight against Islamic State militants in Nawaran near Mosul, Iraq, April 20, 2016. (Photo by Ahmed Jadallah/Reuters)

Russian servicemen stand next to a Russian Yars RS-24 intercontinental ballistic missile system before a rehearsal for the Victory Day parade, with the Moscow International Business Center also known as “Moskva-City” seen in the background, at a range in Moscow, Russia, May 5, 2016. (Photo by Maxim Shemetov/Reuters)

A replica of the truck made from matchsticks by Janusz Urbanski is pictured at his flat in Ruda Slaska, Poland May 4, 2016. Janusz Urbanski has a one of a kind chessboard he never plays, a personalised guitar he does not strum and a boat he cannot sail. Why? They are all made from tens of thousands of matches. For the last 40 years, the former Polish miner and ironworker has harboured a passion to build replicas of objects, buildings and famous sites with just matchsticks and glue. (Photo by Kacper Pempel/Reuters)

Britain Soccer Football, West Ham United vs Manchester United, Barclays Premier League, Old Trafford on May 10, 2016. Police play football with a young West Ham fan before the match. (Photo by Eddie Keogh/Reuters/Livepic)

A model presents a creation by designers Humberto Leon and Carol Lim as part of their Autumn/Winter 2015/2016 women's ready-to-wear collection for Japanese fashion house Kenzo during Paris Fashion Week March 8, 2015. (Photo by Gonzalo Fuentes/Reuters)

A man watches the huge waves which brakes at the Paseo Nuevo's promenade in San Sebastian, Basque Country, Spain on 11 January 2016 where the wind has reached to 90 km/h and have been registred waves of eight kilometres due to the bad weather. (Photo by Juan Herrero/EPA/EFE)