Marlow, Buckinghamshire, England, United Kingdom: (Left to Right) Harry and Charlie Davies-Carr of YouTube viral hit 'Charlie Bit me!' This image is from YouTube Revolution.
Garamba National Park, Democratic Republic Of Congo: One of the thousands of elephants killed every year for its tusks. Thousands more people are attacked, raped and murdered in the path of destruction paid for by the trade. This image is from Warlords of Ivory.
Australia: Young male kangaroos test their strength and hone their moves with other young males â what they learn here will be crucial later in life, when the stakes are higher. This image is from The Kangaroo King.
WildBear Entertainment Pty Ltd / Jens Westphalen / Thoralf Grosptiz
North Wales, United Kingdom: Presenter Tim Shaw (left) and co-presenter Buddy Munro (right) 'walking' Tim's hoverboard. This image is from Man v. Viral.