Young earth. Exploring earth's past ; The origin of the earth ; The first 500 million years ; Plate tectonics ; Changing climates ; Life and evolution ; Classification ; Mass extinctions ; Types of fossils ; Information in the fossil record ; Key fossil sites ; The geological timescale
Life on earth. Archean ; Proterozoic ; Cambrian ; Ordovician ; Silurian ; Devonian ; Carboniferous ; Permian ; Triassic ; Jurassic ; Cretaceous ; Paleogene ; Neogene ; Quaternary
The rise of the humans. Human relatives ; Human ancestors ; Origins of modern humans ; Out of Africa ; European hunter gatherers ; Paleolithic cave art ; After the ice.