A mine detection rat is given banana as a reward after successfully identifying an inactive mine on July 2, 2015 in Siem Reap, Cambodia. The Cambodian Mine Action Center (CMAC) working with the Belgian NGO APOPO has recently begun testing the feasability of using large mine detection rats from Tanzania to help clear fields of mines and unexploded ordnance in one of the most bombed and mined countries in the world. (Photo by Taylor Weidman/Getty Images)

Television actress Catherine Fuller visits Trafalgar Square in London and feeds the famous pigeons. (Photo by Harry Kerr/BIPs/Getty Images). 26th June 1956

Shy'm poses as she arrives at NRJ Music Awards 2012 at Palais des Festivals on January 28, 2012 in Cannes, France. (Photo by Pascal Le Segretain/Getty Images)

“A magician has spent the last 12 months creating a different amazing balloon model every day – including cartoon characters and even a life-sized balloon bike. Magician Rob Driscoll, or Robbie the Wizard as he is known in his magic act, from Portsmouth, Hampshire, has fashioned balloons into various shapes for the past year. He has spent time creating famous cartoon characters such as Gru from Despicable Me, Spongebob Squarepants and Sonic the Hedgehog, which he gives away to children at his shows”. – Caters News Agency. Photo: “Scorpian”. (Photo by Rob Driscoll/Caters News Agency)

In this April 28, 2014 file photo, a woman throws a rock and a bag at police blocking her from getting home in the Huepetuhe district of the Madre de Dios region of Peru. Security forces began destroying illegal gold mining machinery in Peru's southeastern jungle region of Madre de Dios, as authorities began enforcing a ban on illegal mining. (Photo by Rodrigo Abd/AP Photo)

Born with a rare condition, the artist has chronicled her life in portraits – capturing everything from her tattooed prosthetics to the tentacled creature she stitched together on the shores of Naoshima. Here: Ophelia (2013). From a series of photos of imagined women exhibited at the 2013 Aichi Triennale. Here, Katayama invokes Hamlet’s tragic heroine, after the painting by British pre-Raphaelite John Everett Millais. (Photo by Mari Katayama/The Guardian)

A busy rush hour sees thousands of commuters climbing on board a train – as well as holding onto its sides and sitting on the roof before it speeds off. Men, women and children climb and are pulled up onto the roof of the train, which is around 12ft (3.6m) high, as they try to find themselves a space. With no seats available inside, many commuters decide to take the risk and choose a rooftop view for their journey out of Dhaka city, in Bangladesh. (Photo by Yousuf Tushar/Solent News & Photo Agency)

Cadets from the National Cadet Corps (NCC) celebrate after being awarded the first position in the best marching trophy competition during the Republic Day celebrations in the northern Indian city of Chandigarh January 26, 2015. (Photo by Ajay Verma/Reuters)