Related by context. Frequent words. (Click for all words.) 56 theropods 50 theropod 46 Ardipithecus 45 Archaeopteryx 45 morphology 45 mammalian 44 nubby 44 Neandertal 44 H. erectus 44 striations 44 melanosomes 44 evolutionary 43 Tiktaalik 43 forelimbs 43 hominins 43 phylogenetic 42 carnivorous dinosaurs 42 crocodilians 41 knobby 41 multicellular 41 pterosaur 41 vertebrates 41 ovoid 41 tetrapods 41 hominin 41 spiny 40 flagellum 40 wiggly 40 single celled organisms 40 mammalian brain 40 Neandertals 40 homology 40 coiling 40 rubbery 40 prehistoric 40 Denisovans 39 pinkish 39 bristly 39 Late Cretaceous 39 anthropomorphic 39 Homo habilis 39 protruding 39 globular 39 abiotic 39 multicellular organisms 39 Longrich 39 fossils 39 dinosaurs 39 hominids 39 single celled 39 wiggling 39 palaeontologists 39 morphological 38 tyrannosaur 38 Australopithecus 38 fossil 38 vertebrate 38 prokaryotes 38 nanoscopic 38 pterosaurs 38 hadrosaur 38 trilobites 38 Homo erectus 38 common ancestor 38 stromatolites 38 tyrannosaurs 38 greyish 38 subfamily 38 roundness 38 eukaryotes 38 Cretaceous Period 38 genus Homo 37 coloration 37 arthropods 37 keyholes 37 evolutionary adaptation 37 sauropods 37 sauropod 37 spidery 37 fuzzy 37 talon 37 distantly related 37 microfossils 37 homologous 37 coprolites 37 hominid 37 mammalian species 37 phylogeny 36 microscopic 36 chunky 36 baleen whales 36 lima bean 36 marine invertebrates 36 bipedalism 36 Archaea 36 supercontinent 36 taxa 36 Homo sapiens 36 Neanderthals 36 Geneticists 36 mammals