Related by context. Frequent words. (Click for all words.) 58 humans 58 ancestors 53 homo sapiens 51 Neandertals 51 creatures 51 forebears 51 Homo sapiens 51 digestive tracts 50 intelligent beings 50 tyrannosaurs 49 Neanderthals 49 bipeds 49 megafauna 49 Fruit flies 49 evolutionary adaptation 49 parasitic worms 48 ancients 48 humankind 48 hunter gatherers 48 human beings 48 civilization 48 lifeforms 47 arthropod 47 dinosaurs 47 prehistoric 47 mammals 47 naked mole rats 47 organisms 47 prehistory 47 mammoths 47 cavemen 47 genetic makeup 47 Homo Sapiens 47 millennia 47 forefathers 47 ancient Mayans 46 cave dwellers 46 marine reptiles 46 nocturnal creatures 46 hominins 46 ancient Egyptians 46 herbivores 46 primeval 46 insects 46 beings 46 primates 46 hominids 46 arachnids 46 ancient civilization 46 winged creatures 46 ancient civilizations 46 earthlings 46 spiritual beings 46 woolly mammoths 46 Humans 45 multicellular organisms 45 Honey bees 45 houseflies 45 anteaters 45 eternal truths 45 Neandertal 45 giant tortoises 45 forelimbs 45 metabolisms 45 primordial 45 Wrangham 45 cave dwelling 45 genetically programmed 45 single celled organisms 45 Evolutionists 45 narwhals 45 Longrich 45 domesticated 45 Poinar 45 Etruscans 45 Human beings 45 marine invertebrates 44 millenia 44 Octopuses 44 pterodactyls 44 HUMANS 44 carnivorous dinosaurs 44 bipedalism 44 biosphere 44 carnivores 44 eons 44 millenniums 44 Neanderthal 44 single celled 44 Fertile Crescent 44 dung beetles 44 Spanish conquistadors 44 evolutionary biologists 44 critters 44 coprolites 44 mammalian 44 forbears 44 trilobites 44 tyrannosaur 44 mandibles 44 apes