Related by context. Frequent words. (Click for all words.) 68 H. erectus 66 Australopithecus 65 hominins 65 Ardipithecus 62 Homo habilis 61 Archaeopteryx 61 hominin 61 hominid 61 genus Homo 60 theropod 60 hominids 60 Homo erectus 60 Homo sapiens 59 Indohyus 59 anthropoids 59 theropods 58 Neandertals 58 feathered dinosaurs 58 monkeys apes 58 Denisovans 58 Tiktaalik 58 bipedalism 57 Australopithecus afarensis 57 carnivorous dinosaurs 56 tetrapods 55 afarensis 54 tyrannosaur 54 tetrapod 53 LB1 53 multicellular organisms 53 forelimbs 53 morphologic 53 mammalian brain 52 hadrosaur 52 Homo floresiensis 52 crocodilians 52 FOXP2 52 homo sapiens 52 phyla 52 mitochondrial genome 52 vertebrates 51 primate species 51 evolutionary 51 anatomically modern 51 humanlike 51 Neandertal 51 vertebrate 51 evolutionarily 51 common ancestor 51 Neanderthals 50 tyrannosaurs 50 morphologies 50 nonhuman primates 50 sauropod 50 lineages 50 angiosperms 50 bipedal 50 interbred 50 Neanderthal 49 morphologically 49 multicellular 49 fossilization 49 mammalian species 49 ribozyme 49 species Homo sapiens 49 mandible 49 Otzi 49 melanosomes 49 humans 49 primitive 49 eukaryotic cells 48 simian immunodeficiency virus 48 pterosaurs 48 melanogaster 48 APOE4 48 genetic alteration 48 fruit fly Drosophila 48 susceptibility gene 48 Homo Sapiens 48 histologically 48 clade 48 phylogenetic 48 prion disease 48 Radiocarbon dating 48 ape 48 taxa 48 coelacanth 48 sauropods 48 herbivorous 47 Beringia 47 Neanderthal DNA 47 locomotor 47 hind limbs 47 clades 47 Longrich 47 supercontinent 47 subfamily 47 Oetzi 47 genetically distinct 47 biped 47 histologic