“The Challenge!” Young boy relishes in a game of tug of war before school. Photo location: Lake Titicaca, Peru. (Photo and caption by Paul Heyman/National Geographic Photo Contest)

A fly rides a butterly, July 2016. (Photo by Petar Sabol Sharpeye/Rex Features/Shutterstock)

With the humpback calving season drawing to a close, here’s a look at some of Rita Kluge’s distinctive marine photos from the south Pacific. The Sydney-based photographer fell in love with whales after witnessing southern rights from the New South Wales coastline as they travelled to and from their feeding grounds in the Antarctic. She has since been to Tonga, where humpbacks breed and calf in winter months, to photograph them in the water. (Photo by Rita Kluge/The Guardian)

Office sеx. (Photo by Orange-Melody/Getty Images)

These stunning images capture some of America's most intense storms from an extraordinarily close perspective. Here: A tornado storm is rolling over the town of Stratford, Texas on May 17, 2016. (Photo by Maximilian Conrad/Caters News)

Woman taunts naked man. (Photo by riskms/Getty Images)

In the works of a photographer named Dave – who goes by Freaktography and never gives out his full name – haunting abandonment leaps from images of discarded machinery, tools and factory essentials. (Photo by Freaktography/Caters News Agency)

Female female male threesome. My bit on the side is my best male friend. (Photo by Laoshi/Getty Images)