Related by context. Frequent words. (Click for all words.) 67 plesiosaurs 65 theropod 64 toothed whales 62 horned dinosaurs 62 placental mammals 62 carnivorous dinosaur 61 Ardipithecus ramidus 61 horned dinosaur 61 Tiktaalik 61 baleen whale 61 hominid species 60 H. erectus 60 Indohyus 59 Raptorex 59 Diplodocus 59 feathered dinosaurs 59 Falcarius 59 tetrapod 58 Nile crocodile 58 Neandertal 58 mammal 58 herbivorous 58 subfamily 58 vertebrate animals 58 anthropoids 58 flatworm 58 fossa 57 phyla 57 otolith 57 trilobite 57 crocodilian 57 Early Cretaceous 57 mottled brown 57 theropod dinosaurs 57 H. sapiens 57 sexual dimorphism 57 pterosaur 57 baleen whales 57 Ardipithecus 57 tyrannosaur 57 Gigantoraptor 56 genus 56 arthropod 56 teosinte 56 crocodilians 56 anglerfish 56 marine invertebrates 56 theropods 56 convergent evolution 56 Columbian mammoth 56 forelimbs 56 stickleback 56 hadrosaur 56 Archaeopteryx 56 hominid 56 pipefish 55 braincase 55 flatworms 55 sauropod 55 morphologically 55 Jurassic Period 55 T.rex 55 bony plates 55 tyrannosaurus 55 canine teeth 55 mitochondrial genome 55 dinosaur species 55 pliosaur 55 marine reptile 55 trilobites 55 anthropoid 55 A. afarensis 55 vertebrate species 55 phylum 55 marten 55 genus Homo 55 mammals 54 otoliths 54 Australopithecus 54 skink 54 carnivorous dinosaurs 54 hominin 54 Apatosaurus 54 amphipods 54 Gansus 54 Homo habilis 54 forelimb 54 killifish 54 Scientists theorize 54 melanosomes 54 refugia 53 staghorn 53 hominins 53 elegans 53 serrated teeth 53 hominid fossils 53 montane 53 taxon 53 Amur leopard 53 erectus 53 Titanoboa