She accompanied her husband, Dietland Muller-Schwarze, a biologist, to Cape Crozier on Ross Island.
Flying from Christchurch, New Zealand, on 15 October 1969, they arrived in Antarctica to study Adelie penguins at Cape Crozier, some 50 miles from the American McMurdo Station.
[1] For a time, the couple shared a field cabin with other scientists but later had their own collapsible fibreglass igloo.
[3] Jones and six other women scientists were flown to the South Pole on 12 November 1969 but Muller-Schwarze declined the trip as she was too busy with her penguins.
[4] Muller-Schwarze and her husband studied the behaviour of the predator-prey relationships between the leopard seal and the south polar skua as well as the prophylactic and defensive behaviour of Adelie penguins, showing that when dispersed by a leopard seal attack, the penguins remain motionless for long periods.