Members of a teenage girl gang convincing an unwilling recruit to join the gang, circa 1955. (Photo by Vecchio/Three Lions)

Alexandre Vinokourov of Kazakhstan from the T-Mobile Team is chased by eccentric german inventor Didi Senft dressed as the red devil during the stage 16 of the 92nd Tour de France between Mourenx and Pau on July 19, 2005, France. (Photo by Friedemann Vogel/Bongarts/Getty Images)

Young man making the O.K. sign. (Photo by George Marks/Retrofile/Getty Images). Circa 1950s

Cynthia the Kodiak Bear enjoys a whole Tasmanian Atlantic Salmon to celebrate her 28th birthday at Taronga Zoo on January 17, 2005 in Sydney, Australia. (Photo by Matt King/Getty Images)

In a simpler time all a child or an adult needed to enjoy the outdoors was a ball and a stick. Or maybe an old tire tied to a high branch to fashion a swing. And the only instruction given to children was to “be home before dark”. Now there are iPads and computers and television screens and shrinking safe public spaces. But despite the distractions and limitations of space, these images show the charm of kicking a ball or skipping rope endures. Sometimes with modifications as a nod to changing times. Here: in this Saturday, June 20, 2015 photo, a boy runs while playing with a motorcycle wheel in Samugari, Ayacucho, Peru. (Photo by Rodrigo Abd/AP Photo)

Framed by the setting sun, an American Bison grazes at the Tallgrass Prairie National Preserve on Tuesday, April 28, 2015, near Strong City, Kan. The buffalo herd at Tallgrass is one of the few herds of wild bison left in the United States. (Photo by Travis Heying/The Wichita Eagle via AP Photo)

A Rohingya migrant woman, who arrived in Indonesia by boat, carries a bottle of drinking water inside a temporary compound for refugees in Kuala Cangkoi village in Lhoksukon, Indonesia's Aceh Province May 17, 2015. (Photo by Reuters/Beawiharta)