Related by context. Frequent words. (Click for all words.) 68 hind limbs 62 canine teeth 61 forelegs 61 hind legs 60 mandibles 60 Archaeopteryx 60 theropods 60 pterosaurs 58 sauropods 57 bipedal 56 flagella 55 biped 55 tyrannosaur 55 dorsal fin 55 pterosaur 54 Velociraptor 54 herbivorous 54 musculature 54 Tiktaalik 54 tetrapods 54 vertebrates 54 Australopithecus 53 mammals 53 webbed feet 53 hominids 53 snout 53 spindly legs 53 T. rex 52 sauropod 52 vertebrate 52 Homo habilis 52 locomotion 51 dorsal fins 51 Longrich 51 hominid 51 evolutionarily 51 tyrannosaurs 51 nonhuman primates 50 pelvises 50 T rex 50 mandible 50 appendages 49 beaks 49 femurs 49 Homo erectus 49 flightless birds 49 herbivores 49 mutant mice 49 chimps 49 hind 49 Australopithecus afarensis 48 velociraptor 48 Tyrannosaurus rex 48 herbivore 48 tusks 48 stockier 48 hindquarters 48 baleen whales 48 humanlike 48 beak 48 Neandertals 47 flightless 47 dentition 47 Triceratops 47 incisors 47 apes 47 tail feathers 47 dinosaurs 47 melanosomes 47 roundworms 47 anatomically 47 mammal 47 gaits 47 legs 47 bony 46 triceratops 46 proboscis 46 primates 46 humerus 46 exoskeletons 46 multicellular 46 arthropods 46 primate species 46 mammalian species 46 metabolisms 46 testes 46 Homo sapiens 46 talons 46 cilia 46 humans 46 claws 46 millipedes 46 chimpanzees 46 mammalian 46 Tyrannosaurus 45 microcephaly 45 pincers 45 phylum 45 arthropod 45 marmosets 45 abdomens