Related by context. All words. (Click for frequent words.) 79 Ichthyostega 74 tetrapod 73 Panderichthys 71 theropod 71 tetrapods 71 H. habilis 70 Heterodontosaurus 70 Tiktaalik 69 ichthyosaurs 69 lobe finned fish 69 dromaeosaurid 69 australopithecines 69 australopithecine 68 Australopithecus africanus 68 Archaeopteryx 68 ramidus 68 Paranthropus 67 archeopteryx 67 plesiosaurs 67 Ventastega 66 flatfishes 66 ichthyosaur 66 mosasaurs 66 dromaeosaurs 66 hindlimbs 66 Homo ergaster 66 hind fins 66 placental mammals 66 H. erectus 65 placental mammal 65 H. sapiens 65 A. sediba 65 Psittacosaurus 65 tyrannosaurids 65 herbivorous dinosaurs 65 Confuciusornis 65 Europasaurus 65 PancakeCroc 65 genus homo 65 Repenomamus 65 Pierolapithecus 65 sauropod dinosaurs 65 apelike 65 Castorocauda 65 chordates 65 ancient arthropods 65 conodonts 64 amphioxus 64 bony fishes 64 birdlike dinosaur 64 bilaterians 64 ostracods 64 Icadyptes 64 Iguanodon 64 theropods 64 earliest hominid 64 gracile 64 sexually dimorphic 64 theropod dinosaur 64 Homo species 64 Sinosauropteryx 64 Kosmoceratops 64 Homo sapiens evolved 63 Puijila 63 Tyrannosaurs 63 Anomalocaris 63 Australopithecines 63 theropod dinosaurs 63 evolutionary lineage 63 braincase 63 archosaurs 63 horned dinosaurs 63 Early Cretaceous 63 Ardipithecus 63 terrestrial vertebrates 63 spiny anteater 63 quadrupedal 63 Homo genus 63 H. floresiensis 63 lobe finned fishes 63 Anchiornis huxleyi 63 Ediacaran 63 Indohyus 63 Gigantopithecus 63 T. hallae 63 megalodon 63 multi celled 63 ornithischians 63 P. boisei 63 homo erectus 62 eukaryote 62 sister taxon 62 robustus 62 predatory dinosaurs 62 crocodilians 62 bird Archaeopteryx 62 A. afarensis 62 habilis 62 monotremes 62 Australopithecus 62 unicellular 62 tetrapods evolved 62 Darwin finches 62 artiodactyls 62 toothless beak 62 Linhenykus 62 placentals 62 faunas 62 pelvic fins 62 Sahelanthropus 62 choanoflagellates 62 homo habilis 62 Cenozoic Era 62 Microraptor gui 62 primate lineage 62 humans Homo sapiens 62 Sahelanthropus tchadensis 62 Nectocaris 62 hominid species 62 Theropods 62 genus Australopithecus 62 sediba 61 Gansus 61 hominins 61 apatosaurus 61 species Australopithecus afarensis 61 hominin 61 jawless fish 61 H. heidelbergensis 61 Guanlong 61 A. ramidus 61 Rugops 61 Osedax 61 terrestrial mammals 61 baleen whale 61 archosaur 61 Tarbosaurus 61 vertebrate 61 metazoans 61 long necked sauropod 61 Paranthropus robustus 61 backboned animals 61 forelimbs 61 otoliths 61 feathered dinosaurs 61 caecilian 61 Homo erectus evolved 61 placoderms 61 Massospondylus 61 Raptorex 61 lungless 61 Microraptor 61 vertebrate evolution 61 ray finned 61 scutes 61 meadow vole 61 hominid evolution 61 hominin species 61 stickleback 61 otolith 61 Ardipithecus ramidus 61 auklets 60 steppe mammoth 60 vertebrates 60 Pakasuchus 60 radula 60 pterosaur 60 anal fins 60 coelurosaurs 60 metazoan 60 Late Devonian 60 Xenopus 60 Australopithecus sediba 60 Repenomamus robustus 60 Devonian Period 60 toothed whale 60 Diplodocus 60 hominoid 60 necked dinosaur 60 Inkayacu 60 vertebrate fossils 60 Orrorin tugenensis 60 brachiopods 60 fossilized skull 60 monotreme 60 partial skeleton 60 Eoraptor 60 bryozoans 60 Spinosaurus 60 crocodilian 60 bipedal locomotion 60 sparrow sized 60 threespine sticklebacks 60 jawless 60 winged dinosaur 60 subadult 60 erectus 60 Majungatholus 60 mitochondrial genomes 60 Laetoli 60 kipunji 59 somites 59 trilobites 59 Dallasaurus 59 Guanlong wucaii 59 sifaka 59 crinoids 59 ankylosaur 59 stegosaurs 59 tyrannosaur 59 extinct mammals 59 Platynereis 59 hyraxes 59 gastropod 59 morphologically 59 morphologically distinct 59 Maiacetus 59 Sauropods 59 teleost fish 59 rotifer 59 Asilisaurus 59 feathered dinosaur 59 oviraptors 59 Australopithecus anamensis 59 Homo neanderthalensis 59 phthalate syndrome 59 Darwinopterus 59 Dromomeron 59 Neanderthals Homo neanderthalensis 59 Jaekelopterus 59 ontogenetic 59 Barn swallows 59 anamensis 59 placoderm 59 red colobus 59 hadrosaur 59 Cretaceous Period 59 fossilize 59 Morganucodon 59 torosaurus 59 Denisovan 59 cnidarians 59 Tianyulong 59 primate ancestors 59 dinosaur precursors 59 Haast eagle 59 mammal fossils 59 Smilodon 59 phylogeographic 59 O. tugenensis 59 anthropoids 59 forelimb 59 Plesiosaurs 59 caecilians 59 africanus 59 floresiensis 59 Neandertals 59 cecal 59 Xenopus laevis 59 LB1 59 bdelloid rotifers 59 Homo habilis 59 planaria 58 Tiktaalik roseae 58 antiquus 58 cartilaginous 58 avian dinosaurs 58 Late Cretaceous 58 Argentinosaurus 58 Protoceratops 58 unicellular organisms 58 duck billed hadrosaur 58 monophyletic 58 Ice Age bison 58 Xiphactinus 58 earliest tetrapods 58 Triassic Period 58 sexual dimorphism 58 mangabeys 58 fossilized footprints 58 Dakosaurus 58 lunglessness 58 trilobite 58 carnivorous mammals 58 quill knobs 58 Coelophysis 58 reproduce asexually 58 Permian Period 58 gorilla chimpanzee 58 Giraffa camelopardalis 58 fearsome predator 58 woolly rhinoceros 58 Cambrian Period 58 African clawed frog 58 Torosaurus 58 Falcarius 58 mammals 58 flatworms 58 bipedalism 58 prokaryote 58 dimorphic 58 barbels 58 Juravenator 58 microcephalin 58 Galapagos penguins 58 Gawis 58 Neandertal 58 long necked sauropods 58 amphipods 58 Anchiornis 58 bipedal dinosaurs 58 extinct woolly mammoth 58 Cuvier 58 spined stickleback 58 bilaterally symmetrical 58 wormlike 58 mammalian brains 58 mastodon tusk 58 leucistic 58 hominoids 58 Homo erectus 58 sea scorpion 58 Hadrosaur 58 Eocene Epoch 58 flatworm 58 Quetzalcoatlus 58 primate evolution 58 plesiosaur 58 gymnosperms 58 Prototaxites 58 Genyornis 58 microcephalics 57 DuckCroc 57 Hadrocodium 57 phyla 57 Nemicolopterus 57 Fossilised 57 planktonic foraminifera 57 femora 57 Jurassic Period 57 herbivorous dinosaur 57 ostracodes 57 Giganotosaurus 57 Mrs Ples 57 carnivorous dinosaurs 57 invertebrate animals 57 earliest hominids 57 sauropodomorphs 57 neural crest cells 57 Sinornithosaurus 57 Brontomerus 57 called Abydosaurus mcintoshi 57 Stegodon 57 sauropods 57 Middle Paleolithic 57 hadrosaurs 57 Mammalia 57 Pan troglodytes 57 ornithopod 57 semipalmated sandpiper 57 coelacanth 57 aurochs 57 endosymbiosis 57 nicknamed Ardi 57 Scientists theorize 57 apelike ancestors 57 Per Ahlberg 57 Homo heidelbergensis 57 pygmy chimpanzee 57 hypoplasia 57 Oviraptor 57 holotype 57 vesper bats 57 Laonastes 57 protists 57 peccary 57 jawed vertebrates 57 SIVcpz 57 Edmontosaurus 57 pelvic fin 57 Argentavis 57 subfamily 57 extinct reptiles 57 springtails 57 cranial vault 57 Zhe Xi Luo 57 auks 57 X. laevis 57 echinoderms 57 DogCroc 57 crinoid 57 prehistoric lizard 57 Orrorin 57 hominid 57 yolk sac 57 Tawa hallae 57 reproductively isolated 57 morphological 57 collared peccary 57 Seitaad 57 caudal 57 tarsus 57 anthropoid primates 57 giganteus 57 Mrs. Ples 57 billed dowitcher 57 barnacle goose 57 embryonic tissues 57 Pterosaurs 57 fossilisation 57 tyrannosaurus 57 phylogenies 56 morphology 56 undescribed species 56 premolar 56 Plateosaurus 56 crurotarsans 56 spookfish 56 therizinosaurs 56 chordate 56 comb jellies 56 hominin fossils 56 multicellular animals 56 Abydosaurus 56 Dakosaurus andiniensis 56 mosasaur 56 dinosaurian 56 multi celled organisms 56 sapiens 56 sauropod dinosaur 56 melanosomes 56 fossilized skeleton 56 comb jelly 56 mangabey 56 multicellular 56 Australopithecus afarensis 56 baleen whales 56 coprolite 56 fossa 56 Liang Bua 56 hermaphroditism 56 Ediacara 56 hominid fossils 56 platypuses 56 chimpanzees Pan troglodytes 56 worm C. elegans 56 maxilla 56 caudal vertebrae 56 amphibians reptiles birds 56 long necked dinosaur 56 isopods 56 prehuman 56 Paedocypris 56 Late Jurassic 56 convergent evolution 56 insects crustaceans 56 mammal lineages 56 molar teeth 56 Rhesus monkey 56 bony plates 56 radial glia 56 Osedax worms 56 Prevotella 56 ectodermal 56 Tertiary Period 56 planarians 56 sauropod 56 Camarasaurus 56 hominids 56 marine invertebrates 56 primate species 56 Hesperonychus 56 Mapusaurus roseae 56 ocean sunfish 56 trichromatic vision 56 ipRGCs 56 pteropod 56 tuataras 56 trabeculae 56 cartilaginous fish 56 thighbones 56 Trichophyton rubrum 56 Sauropod 56 bufo 56 Mammuthus 56 ciliated 56 Australopithecus genus 56 Sticklebacks 56 stegosaur 56 hominid ancestors 56 mammalian lineage 56 Hadar Ethiopia 56 cytochrome b 56 gliding mammals 56 mammalian species 56 burrowing frog 56 highland mangabey 56 planarian 55 Kadanuumuu 55 species reproduce asexually 55 M. leprae 55 endocasts 55 embryological 55 T.rex 55 terrestrial vertebrate 55 Cretaceous extinction 55 Toumai 55 green alga Chlamydomonas 55 phylogenetically 55 Mesozoic era 55 colugos 55 echidnas 55 Prochlorococcus 55 ape ancestor 55 molecular phylogeny 55 Miocene epoch 55 mouse lemur 55 marine reptiles 55 extinct mammal 55 hemoglobins 55 Chlamydomonas 55 Concavenator 55 mammal 55 curved tusks 55 Linheraptor 55 diatom 55 Baleen whales 55 non mammalian vertebrates 55 Dinocephalosaurus 55 multicellular organisms 55 Indricotherium 55 angiosperms 55 radiographically 55 pliosaur 55 Utahraptor 55 prokaryotes 55 bony structures 55 ilium 55 Cambrian Explosion 55 taxa 55 Hox genes 55 vertebrate species 55 tardigrades 55 evolutionary divergence 55 Early Cretaceous Period 55 syrinx 55 gill rakers 55 saber tooth cat 55 Turiasaurus 55 maxillary 55 felis 55 Neanderthal genes 55 ancient hominids 55 Taung child 55 fossil primate 55 isopod 55 insectivore 55 Pongo pygmaeus 55 hoofed mammals 55 ADPKD patients 55 legless lizard 55 primordia 55 Homo sapiens 55 Pleistocene epoch 55 ZEBOV 55 hind limb 55 toothed whales 55 copepod 55 annelid worms 55 Middle Pleistocene 55 vascularized 55 interconversion 55 mammals reptiles birds 55 KT boundary 55 regrow limbs 55 Raptorex kriegsteini 55 eastern cougar subspecies 55 duckbilled dinosaurs 55 Mus musculus 55 hominid fossil 55 MMP# 55 Dilophosaurus 55 maned wolf 55 Woolly mammoths 55 ciliates 55 anthropoid 55 Late Triassic 55 Volvox 55 sea anemones corals 55 sifakas 55 killifish 55 spindle neurons 55 bipedally 55 chimp genomes 55 vertebrate animals 55 hind limbs 55 gracilis 55 hindlimb 55 beaked whale 55 distantly related species 55 therizinosaur 55 morphometric 55 lateralized 55 ray finned fishes 55 titanosaurs 55 spotted hyena 55 Miocene Epoch 55 Carcharhinus 55 fossilized bone 55 Homo antecessor 55 Apatosaurus 55 anole 55 genus Homo 55 brachiopod 55 lesser yellowlegs 55 Platypuses 55 prion gene 55 predator prey interactions 55 spicule 55 ortholog 55 Late Ordovician 55 evolutionary lineages 55 sticklebacks 55 carnivorous mammal 55 angiosperm 55 trabecular bone 55 passerines 55 egg follicles 55 carbon isotopes 55 guanaco 55 pink iguana 55 Basilosaurus 55 talus bone 55 tectum 55 hyrax 55 premolars 55 iridium layer 55 phalaropes 55 cavefish 55 Peromyscus 55 coccolithophores 55 marbled salamander 55 Trichoplax 54 fossilized specimens 54 fossilized creatures 54 chick embryo 54 Nigersaurus 54 Cambrian explosion 54 echinoderm 54 Darwinius 54 Cypriot hippos 54 carnivorous dinosaur 54 inbreeding depression 54 Adélie penguins 54 ear tufts 54 baculum 54 glabrata 54 multicellular creatures 54 Felis silvestris 54 montane 54 dorsal spines 54 protozoans 54 southern supercontinent 54 venom glands 54 Late Miocene 54 endangered subspecies 54 evolutionary adaptations 54 notochord 54 polydactyly 54 striated muscle 54 musculus 54 sulci 54 vertebrate embryos 54 mice lacking 54 pine siskin 54 orangutan genome 54 hyperplastic 54 molar tooth 54 tapetails bignose fishes 54 bryozoan 54 archaeal 54 downy feathers 54 tufted puffin 54 chimplike 54 sauropodomorph 54 whiptail 54 photosynthetic organisms 54 bdelloids 54 taxon 54 Deinonychus 54 mya 54 morphologies 54 Ankylosaurus 54 tufted puffins 54 spotted sandpipers 54 dermoid cyst 54 oviducts 54 pterosaurs 54 afarensis 54 mammoths mastodons 54 relict 54 stubby limbs 54 Daeschler 54 prosimians 54 ontogeny 54 osteochondroma 54 juvenile Columbian mammoth 54 Columbian mammoth 54 hamartoma 54 brown creeper 54 Gryposaurus monumentensis 54 M. smithii 54 paradoxus 54 Neogene 54 Neoproterozoic 54 fungal genomes 54 thylacines 54 hamartomas 54 Kipunji 54 hindbrain 54 Ambystoma 54 fibrous dysplasia 54 marine reptile 54 legged meat eaters 54 Pachycephalosaurus 54 pectoral fins 54 parthenogenetic 54 lemur species 54 Mamenchisaurus 54 Utahceratops 54 tadpole 54 Carcharodon megalodon 54 sensory organ 54 Figure 2C 54 mtDNA sequence 54 toed sloths 54 Weddell seals 54 Neanderthal bones 54 Aardonyx 54 fruitflies 54 anal fin 54 Pliocene epoch 54 Laetoli footprints 54 phylogenetic 54 keratins 54 oxygen isotope ratios 54 forams 54 Aplysia 54 brow ridge 54 C4 grasses 54 hyoid 54 primordial germ cells 54 mammalian carnivores 54 Dunkleosteus 54 pygmy shrew 54 bony ridges 54 venomous lizards 54 Tiarajudens 54 giant danio 54 polychaete 54 tyrannosaurs 54 Gigantoraptor 54 fusiform 54 Denisova Cave 54 Mesonychoteuthis hamiltoni 54 cellularity 54 neurofibromas 54 Wnt proteins 54 Schistosoma 54 trematode 54 polydactyl 54 lizardlike 54 branching corals 54 spirochetes 54 Dikika 54 stickleback fish 54 Puijila darwini 54 amphibians reptiles 54 Laurasia 54 symbioses 54 upper incisors 54 avulsed 54 punctate 54 avascular 54 laterality 54 PGCs 53 diplodocus 53 Columbian mammoths 53 ammonites 53 golden crowned kinglets 53 ectoderm 53 clefting 53 steppe bison 53 brevirostris 53 oviraptor 53 Neanderthal fossils 53 Seitaad ruessi 53 mammalian 53 epiblast stem cells 53 Architeuthis dux 53 Laetoli Tanzania 53 single celled yeast 53 microscopic single celled 53 medullary bone 53 peccaries 53 sympatric speciation 53 crocodiles turtles 53 smithii 53 Ediacaran Period 53 canid 53 dysgenesis 53 mega fauna 53 worm Caenorhabditis elegans 53 Puertasaurus 53 bar tailed godwit 53 Cretaceous Paleogene 53 totipotent 53 pliosaurs 53 Compsognathus 53 Sarahsaurus 53 scleral ring 53 vicious tusk 53 Nimbadon 53 species interbred 53 sabretooth 53 gametophyte 53 Paranthropus boisei 53 cichlid 53 opposable thumb 53 ancient hominid 53 Denisovans 53 squid octopus 53 globin genes 53 Bryde whale 53 Zanno 53 serrated teeth 53 Triassic Jurassic 53 tunica vaginalis 53 brow ridges 53 mammalian predators 53 allosaurus 53 unbanded 53 chiton 53 carpus 53 kha nyou 53 bonnethead 53 Leydig cells 53 osteoid 53 Paleocene 53 interglacial period 53 trichomonosis 53 striata 53 polychaete worms 53 precocial 53 caudal fin 53 single celled microbes 53 coriacea 53 MRL mouse 53 warm blooded vertebrates 53 Aetodactylus halli 53 hyena dung 53 homo floresiensis 53 Hawaiian honeycreeper 53 Daemonosaurus 53 carnivorous sponge 53 giraffe necked 53 anomodonts 53 endangered marsupials 53 resorb 53 collagenous 53 lesser scaup 53 plastron 53 gorillas chimps 53 lactase persistence 53 deuterostomes 53 single celled algae 53 indicus 53 carnivore species 53 Denisova cave 53 flavescens 53 lipofuscin 53 giant sloths 53 calcium carbonate shells 53 striped skunks 53 skeletal deformities 53 pygmy mammoth 53 A. africanus 53 morphological evolution 53 Fig. 1b 53 zooplankton species 53 insect eater 53 mole rat 53 condyle 53 recessive trait 53 wildtype 53 pelvic girdle 53 Pinta Island 53 interbred 53 Proteobacteria 53 Geochelone 53 Pleistocene Ice Age 53 heterozygotes 53 female gametophyte 53 aculeatus 53 vertebrate fossil 53 ancestor Homo erectus 53 giant squids 53 sauropod skulls 53 P. robustus 53 necked dinosaurs 53 ncRNA 53 pubic lice 53 Sea lampreys 53 neuromuscular junctions 53 orthologous 53 sphinx moth 53 unspecialized 53 bird beak 53 mitochondrial genome sequence 53 osteophytes 53 isotope ratios 53 chitons 53 Fig. 3b 53 ape ancestors 53 pteropods 53 Neanderthals interbred 53 ceratopsian 53 elkhorn 53 limbed vertebrates 53 microcephalic 53 Bornean clouded leopard 53 nematode worm 53 dinosaur specimens 53 assassin spiders 53 protist 53 orthologs 53 normal prion proteins 53 dinoflagellate 53 HSPCs 53 guanacos 53 Pterosaur 53 marsupial mammals 53 setae 53 herbivorous 53 cichlid species 53 elongated snout 53 swim bladders 53 Firmicutes 53 phylogeny 53 distinct lineages 53 Warm blooded 53 spinal cysts 53 pteranodon 53 fearsome Tyrannosaurus rex 53 Fruitadens 53 longus 53 hairy nosed 53 Permian extinction 53 BoarCroc 53 tunicates 53 brucei 53 brachiosaurus 53 cone snails 53 methylation patterns 53 terrestrial locomotion 53 multicellular organism 53 single celled bacteria 53 heritable traits 53 dragonfish 53 skink 53 Lamarckian 53 morphological similarities 53 damselfish 53 fig. S1 53 Panthera leo 53 Beringia 53 canine tooth 53 lion Panthera leo 53 passerine birds 53 HAR1 53 freshwater invertebrates 52 thermophilum 52 saber tooth cats 52 raptorial 52 eyespots 52 Mississippi gopher frogs 52 ectotherms 52 cysteines 52 Moczek 52 keratin layer 52 duck billed platypus 52 shrimplike 52 orthologous genes 52 Dinosauria 52 fruitfly Drosophila 52 Alu elements 52 species Ardipithecus ramidus 52 komodo dragon 52 wheatear