Related by context. Frequent words. (Click for all words.) 74 Homo sapiens 62 humans 58 dinosaurs 57 Neanderthals 57 hominids 56 apes 56 beings 56 Homo erectus 56 hominid 55 Homo 55 domesticated 54 hunter gatherers 54 human beings 54 mammals 53 Humans 53 bipedal 52 Neanderthal 52 creatures 52 vertebrates 52 sentient beings 52 humankind 51 evolutionarily 51 civilization 51 ape 50 mammal 50 sentient 50 hunter gatherer 50 evolutionary 50 mankind 50 mastodons 50 creature 49 mammalian 49 Human beings 48 Pleistocene 48 evolutionists 48 humanoids 48 primates 48 beasts 48 cavemen 48 earthlings 47 sloths 47 species 47 Darwinian 47 herbivore 47 pterosaurs 47 chimpanzees 47 human 47 lineages 47 domestication 47 vertebrate 47 extinct 46 mass extinction 46 primitive 46 Chimpanzees 46 primate species 46 Paleolithic 46 arthropods 46 herbivores 46 mammoths 46 dino 46 Earthlings 45 omnivores 45 primeval 45 arboreal 45 common ancestor 45 colonized 45 biosphere 45 prehistoric 45 evolutionary biologists 45 domesticated animals 45 Tyrannosaurus rex 45 dinosaur 44 Darwinists 44 sauropods 44 fossils 44 T. rex 44 organisms 44 sloth 44 lemurs 44 prehistory 44 carnivores 43 flightless 43 woolly mammoth 43 colonizing 43 fossil 43 genetically 43 ancients 43 caveman 43 chimps 43 genetically distinct 42 procreate 42 Darwinian evolution 42 creationists 42 planet 42 Y chromosome 42 biologically 42 ancestors 42 eons 42 eukaryotes 42 lizards 42 organism