This is the time of the first Hominids – our earliest direct ancestors. Though relatively unintelligent and rather small, they were on the path to world domination – to us. Mean whilst, the Ice Ages had arrived. However, at first glance, it may not be clear that they are; there are only small Ice Caps, and the global drying is slow, and unnoticeable. The animals living in this time, are at a crossroads - very soon, there will be a major shift in climate, that will completely finish off the ancient mammals and birds. For the meantime, though, there are strange combination of a mixed assortment of new animals about to take over, and older animals, on their way out. For example, the older Sabre-Toothed Cats, were accompanied by newer predators, such as Lions and Leopards.
The Precambrian Super-Eon The Hadean Eon The Archaean Eon The Proterozoic Eon The Phanerozoic Eon The Palaeozoic Era The Cambrian Period The Ordovician Period The Silurian Period The Devonian Period The Carboniferous Period The Permian Period The Mesozoic Era The Triassic Period The Jurassic Period The Cretaceous Period The Cenozoic Era The Tertiary Period The Palaeocene Epoch The Eocene Epoch The Oligocene Epoch The Miocene Epoch The Pliocene Epoch The Quaternary Period The Pleistocene Epoch The Holocene Epoch