Nick Garbutt / Adult male Diademed Sifaka (Propithecus diadema) 'skipping / dancing' across open ground between forest fragments, eastern Madagascar.

Christophe Courteau / Kalahari bushmen, family playing traditional game, dry season, Central Kalahari Desert, Botswana, August 2008

Christophe Courteau / Kalahari bushmen, family group playing skipping game, Central Kalahari Desert, Botswana, August 2008

Marie Read / Tricolored heron (Egretta tricolor) adult in breeding plumage capturing fish by half-running half-flying across water's surface and stabbing with its bill, Viera Wetlands, Brevard County, Florida,...

Magnus Lundgren / Wild Wonders of China / Bluespotted mudskippers (Boleophthalmus pectinirostris) skipping along the beach, Hong Kong Wetland Park, Hong Kong, China.

Magnus Lundgren / Wild Wonders of China / Bluespotted mudskippers (Boleophthalmus pectinirostris) skipping along the beach, Hong Kong Wetland Park, Hong Kong, China.

Eric Baccega / Naro San Bushmen family, women and children playing with skipping rope, Kalahari, Ghanzi region, Botswana, Africa. Dry season, October 2014.

Brent Stephenson / White-faced storm-petrel (Pelagodroma marina) skipping across the surface of the water as it feeds. Hauraki Gulf, Auckland, New Zealand, October.

Nick Garbutt / Verreaux's sifaka lemur (Propithecus verreauxi) dancing or skipping across open ground, Gallery Forest, Berenty Reserve, southern Madagascar.

Ole Jorgen Liodden / Elliot's Storm-petrel (Oceanites gracilis) walking on water feeding. Galapagos

Brent Stephenson / Buller's Shearwater (Puffinus bulleri) in flight showing upperwing, skipping over wavelets. Off North Cape, New Zealand, April.

Brent Stephenson / Buller's Shearwater (Puffinus bulleri) water skipping and swallowing food, with a view of both lower and upper wing. Hauraki Gulf, Auckland, New Zealand, October.