Related by context. Frequent words. (Click for all words.) 76 Neanderthal 73 Homo sapiens 69 hominids 67 Homo erectus 65 hunter gatherers 64 dinosaurs 62 hominid 62 mammoths 60 woolly mammoth 58 prehistoric 57 homo sapiens 56 hunter gatherer 55 Neolithic 55 Pleistocene 52 dinosaur 52 apes 51 Ice Age 51 fossil 51 fossils 51 Homo 51 ancestors 50 prehistory 50 Bronze Age 49 cavemen 49 T. rex 49 Little Ice Age 48 humans 48 hobbits 48 vertebrates 48 Anglo Saxons 48 Iron Age 48 mastodon 47 Anthropologists 47 Polynesians 47 common ancestor 47 ancestor 47 Ardi 46 anthropologists 46 chimpanzees 46 Y chromosome 46 caveman 46 domesticated 45 ancients 45 lineages 45 Tyrannosaurus rex 45 mammals 45 Stone Age 45 paleontologists 45 Mayans 45 herbivore 44 millennia 44 fossilized 44 domestication 44 primates 44 mass extinction 43 chimps 43 ancient Egyptians 43 Roman Empire 43 Middle Ages 43 Cretaceous 42 vertebrate 42 interbreeding 42 ape 42 hobbit 42 Prehistoric 42 primitive 42 evolutionary 42 dino 42 extinct 42 Semitic 42 herbivores 42 Holocene 42 ancient 41 Dark Ages 41 civilizations 41 colonized 41 marsupials 41 Native Americans 41 pre Columbian 41 pagans 41 plate tectonics 41 Fossils 41 skeletons 41 Jurassic 40 antiquity 40 meat eaters 40 mitochondrial DNA 40 Eocene 40 mammal 39 Incas 39 wolverines 39 Ottomans 39 Dinosaurs 39 Ottoman Empire 39 extinct species 39 Hutus 39 civilization 39 bones 39 archeologists 39 Bering Strait 39 archaeologists