Plants (2) Birds (2) puits (1) spectacle (1) gaz naturel (1) parc national (1) gaz (1) fossile (1) Afrique (1) dioxyde de carbone (1) bâtiment (1) Albert (1) Afrique (1) Intercession (1) Ecology (1) Domestic animals (1) Dispersal (1) Colonization (1) Pruning (1) Parts (1) Observations (1) Parts (1) Observations (1) Dead animals (1) Hippopotamidae (1) Restrooms (1) Lists (1) Water (1) Volcanic gases (1) Ungulates (1)