Patricio Robles Gil / Aboriginal man wearing tribal headdress costume for the Mt Hagen cultural show, Papua New Guinea

Patricio Robles Gil / Aboriginal man wearing tribal headdress made with feathers from Bird-of-Paradise, Parrots and Lorikeets, Papua New Guinea

Jabruson / Maasai 'Emowuo-o-lkiteng ceremony, Kedong Valley, Rift valley, Kenya. Il-murran dancers. 1985

Jabruson / Traditional animistic ceremony with primate masks during Ebola disease outbreak, Democratic Republic of Congo, Mondomessokou

Jabruson / Grass skirted pygmy boy dancing in Circumsion ceremony, Mandima village, Dem Rep of Congo

Cyril Ruoso / Monks chanting sutras in mountain worshipping ceremony. Great Gobi B Strictly Protected Area, Mongolia. 2018.

Cyril Ruoso / Men participating in ceremony around sacrificial altar / ovoo to worship mountain, milk libation poured as offerings to mountain deities. Great Gobi B Strictly Protected Area, Mongolia. 2018.

Marie Read / Clark's grebes (Aechmophorus clarkii) courting pair performing the 'Weed Ceremony' in which they slowly circle breast to breast holding pond weed as nesting material, Lake Hodges, Escondid...

Richard Sidey / Slow motion clip of a Baining man performing fire-dance ceremony, kicks at fire, Baining Mountains, East New Britain, Papua New Guinea. 2017.

Richard Sidey / Slow motion clip of a Baining man performing fire-dance ceremony, kicks at fire, Baining Mountains, East New Britain, Papua New Guinea. 2017.

Richard Sidey / Slow motion clip of a Baining man performing fire-dance ceremony, kicks at fire, Baining Mountains, East New Britain, Papua New Guinea. 2017.

Richard Sidey / Slow motion clip of a Baining man performing fire-dance ceremony, kicks at fire, Baining Mountains, East New Britain, Papua New Guinea. 2017.