Related by context. Frequent words. (Click for all words.) 61 prehistoric 60 prehistory 57 woolly mammoths 57 mammoths 57 hunter gatherers 56 Fertile Crescent 55 ancestors 54 Paleolithic 54 Pleistocene 54 megafauna 53 Homo sapiens 53 fossils 53 paleontological 52 Late Cretaceous 52 Native Americans 52 Prehistoric 52 Neandertals 51 Mormon pioneers 51 Denisovans 51 mastodons 50 hunter gatherer 50 hominid 50 radiocarbon dating 50 Spanish conquistadors 50 fossilized bones 50 hominids 50 Neanderthals 50 Homo erectus 49 Neolithic 49 theropods 48 Polynesians 48 dinosaur bones 48 Anasazi 48 Bronze Age 48 arrowheads 48 pre Columbian 48 Mesoamerican 48 paleontologists 48 ancient 48 Mesoamerica 47 glaciation 47 pictographs 47 dinosaur fossils 47 ancient civilizations 47 dinosaurs 47 Mammoths 47 Ice Age 47 petroglyph 47 ancestor 47 petroglyphs 47 mastodon 47 dinosaur fossil 46 prehistoric creatures 46 explorers 46 semi nomadic 46 carvings 46 anatomically modern 46 paleontology 46 Oetzi 46 Moravians 46 fossil 46 palaeontologists 46 Olmec 46 Australopithecus afarensis 46 woolly mammoth 45 Iron Age 45 Medieval Warm Period 45 Homo habilis 45 ancient Mesopotamia 45 interbred 45 tetrapods 45 frontiersmen 45 obsidian 45 Anthropologists 45 fossilized remains 45 prairies 45 Sumerians 45 bluestones 44 archaeologists 44 Paleontologists 44 descendants 44 conquistadors 44 ancient civilization 44 teepees 44 #BC [003] 44 ancestral 44 burial mounds 44 primitive 44 Bering Strait 44 Neanderthal 44 archaeological dig 44 radiocarbon 44 common ancestor 44 Appalachian Mountains 44 ancients 44 pikas 44 tepees 44 tyrannosaurs 44 breeding colony 44 settlers 43 archeology