A feeder trains a Siberian tiger cub at Erdaohe Tiger Park July 2, 2006 in Antu County of Yanbian Chaoxian Autonomous Prefecture, Jilin Province, China. About 15 artificially-fed Siberian tigers from Harbin Siberian Tiger Park are being trained to develop their ability to live in the wild. The wild Siberian tiger is listed as one of the most endangered species in the world, with its existing number estimated at around 400 worldwide, mainly in the northeastern part of China and the Far East of Russia. Reportedly there are more than 1,300 Siberian tigers which have been raised in China. (Photo by China Photos/Getty Images)

“Hellfest is an annual music festival which takes place in Clisson, France in mid-June. It is held within the Val de Moine sport complex in Clisson, approximately 35 km south-east of the city of Nantes, and approximately 400 km south-west of the nation's capital Paris. Billed as an “extreme music festival”, the programme features a variety of heavy metal, hard rock, punk and hardcore acts”. – Wikipedia. Photo: HellFest 2013. (Photo by Cesar Hernandez)

German artist Robert Rickhoff re-interprets the idea of public space with humor through a series of digitally manipulated photographs in a project entitled “out of place”. Rickhoff augments scenes within a seemingly commonplace environment to depict impractical yet lighthearted situations – including a playground slippery dip facing towards a busy road to a speed bump placed in an unassuming residential street that is actually a daredevil ramp. the visualizations are subtle yet provocative, forcing the audience to look twice to notice the unusual setting infused with tongue-in-cheek wit.

A girl rides a donkey as another walks by at the Shawqaba camp for internally displaced people who were forced to leave their villages by the war in Yemen's northwestern province of Hajjah March 12, 2016. In northwest Yemen, one of the poorest countries in the Middle East, about 400 families uprooted by the war have been stuck in the Shawqaba camp in Hajjah province for the past year. Residents live in poorly built huts that protect them neither from summer heat nor winter cold in a camp that lacks the most basic services. (Photo by Abduljabbar Zeyad/Reuters)

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)

A British photographer has captured the hilarious expressions pulled by dogs as they go for a run. From popping eyes to lolling tongues, Nick Ridley from Aylesbury in Buckinghamshire has managed to perfectly pause the pooches in time as they pull a host of funny faces in the great outdoors. The 56-year-old uses a fast shutter speed and lies on the ground snapping away as the dogs run towards him in order to get the perfect shot. Here: A Dogue de Bordeaux. (Photo by Nick Ridley Photography/Caters News Agency)

A Zombie Santa is pictured Death Yard Haunted Attraction in Hendersonville, Tennessee December 10, 2014. The Nashville-area haunted house is getting into the Christmas spirit this weekend, with Zombie Santa, his undead elves and a demonic reindeer going on the attack for fun and charity. (Photo by Harrison McClary/Reuters)