Jerry Monkman / Boy playing on rope swing over the Androscoggin River, Mollidgewock State Park in Errol, New Hampshire, USA, August 2008. Model released.

Norbert Wu / Lavenberg's Gulper-eel (Saccopharynx lavenbergi) deep sea species with hinged mouth swings wide open to accommodate large prey, deep sea, Guadalupe Island

Norbert Wu / Big-mouth Gulper (Eurypharynx pelecanoides) deep sea species with hinged mouth swings wide open to accommodate large prey, San Diego, California

Cyril Ruoso / Baka child swinging on rope, made from a single piece of bark, South East Cameroon, July 2008.

Constantinos Petrinos / Baby boy sleeping inside a baby swing hanging from Eucalyptus tree (Eucalyptus globulus) in a public garden, Halandri, a suburb of Athens. Attica Region, Athens Suburb, Greece, October 2013. Model rel...

Stefan Christmann / Emperor Penguin (Aptenodytes forsteri) chick with swings spread, Queen Maud Land, Antarctica

Benoit Stichelbaut / Palm tree with swing on Kuda Bandos Island, Maldives 1996

Bryan and Cherry Alexander / Nenets children playing on home made swing at their summer camp near Nadym. Yamal, Western Siberia, Russia, 2000.

Bryan and Cherry Alexander / Nenets boy playing on a swing at Reindeer / Caribou herders' winter camp. Yamal, Siberia, Russia, 1996.

Jerry Monkman / Boy playing on rope swing over the Androscoggin River, Mollidgewock State Park in Errol, New Hampshire. USA, August 2008. Model released.

Chadden Hunter / Ted Giffords (cameraman) assisted by Jeff Wilson swings the end of a ‘jib arm' in order to glide the camera over Erta Ale, a bubbling lava lake, for Mountains episode of the BBC tv series Planet Eart...

Chadden Hunter / Ted Giffords (cameraman) assisted by Jeff Wilson swings the end of a ‘jib arm' in order to glide the camera over Erta Ale, a bubbling lava lake, for Mountains episode of the BBC tv series Planet Earth...