Related by context. Frequent words. (Click for all words.) 57 bipedalism 56 H. erectus 55 hominins 54 Homo sapiens 54 hominin 54 Neandertals 54 hominid 54 hominids 53 genus Homo 53 placental mammals 53 Homo erectus 53 Australopithecus 52 humans 52 Homo habilis 52 afarensis 52 trackways 52 forelimbs 52 theropod 51 primate evolution 51 Ardipithecus 51 Ardipithecus ramidus 51 Australopithecus afarensis 50 Neanderthals 50 tetrapods 50 theropods 50 homo sapiens 49 tyrannosaur 49 anthropoids 49 feathered dinosaurs 49 hind limbs 49 bones 49 carnivorous dinosaurs 49 Archaeopteryx 49 Otzi 48 mole rats 48 Neandertal 48 horned dinosaur 48 Diplodocus 48 chimpanzees 48 Tiktaalik 48 mammoths 47 Homo Sapiens 47 Denisovans 47 tetrapod 47 canine teeth 47 Indohyus 47 anatomically modern 47 saber toothed tigers 47 chimps 47 Columbian mammoth 47 marine reptiles 47 Earthlike 47 trilobites 46 tyrannosaurs 46 fossils 46 vertebrate animals 46 morphologically 46 species Homo sapiens 46 Beringia 46 fossil specimens 46 Radiocarbon dating 46 sauropods 46 apes 45 Neanderthal DNA 45 Oetzi 45 crocodilian 45 radiocarbon dated 45 Sumatran rhinos 45 platypuses 45 Cretaceous Period 45 mammals 45 melanosomes 45 dinosaurs 45 monkeys apes 45 ecological niches 45 Mesolithic 45 carnivorous dinosaur 45 Stegosaurus 45 pectoral fins 45 forelimb 44 tyrannosaurus rex 44 lava tubes 44 bipedal 44 biped 44 radiographically 44 woolly mammoths 44 Nigersaurus 44 bipeds 44 supercontinent 44 mammal 44 Komodos 44 Poinar 44 common ancestor 44 ancestors 44 vertebrates 44 Palaeontologists 44 Palaeolithic 44 Neanderthal 44 vertebrate 44 thylacine 44 velociraptors