Related by context. Frequent words. (Click for all words.) 63 theropods 61 theropod 59 crocodilians 59 T. rex 58 forelimbs 58 Diplodocus 58 herbivorous 57 carnivorous dinosaurs 56 placental mammals 56 hadrosaur 56 quadruped 56 Indohyus 55 bipedalism 55 pterosaur 55 Ardipithecus ramidus 55 feathered dinosaurs 54 bipedal 54 toothed whales 54 Tyrannosaurus 54 subfamily 54 Archaeopteryx 54 tetrapods 54 Stegosaurus 53 tetrapod 53 tyrannosaur 53 arthropods 53 Australopithecus 53 velociraptor 52 arthropod 52 velociraptors 52 hind limbs 52 morphologically 52 sauropods 52 Brachiosaurus 52 forelimb 51 Velociraptor 51 biped 51 pterosaurs 51 Allosaurus 51 tyrannosaurus rex 51 marine reptile 51 Caenorhabditis elegans 51 vertebrates 51 Ardipithecus 51 Tyrannosaurus rex 50 dinosaurs 50 Komodos 50 LB1 50 marine reptiles 50 ground sloths 50 mammals 50 chimpanzees 50 herbivore 50 mammalian species 50 Tyrannosaurus Rex 50 Nigersaurus 50 H. erectus 50 hominins 50 lizards 49 quadrupeds 49 afarensis 49 flightless birds 49 mongooses 49 trilobites 49 Tiktaalik 49 vertebrate 49 nematode worms 49 genus Homo 49 tyrannosaurs 49 T rex 49 sauropod 48 platypuses 48 brontosaurus 48 hominid 48 convergent evolution 48 termite mounds 48 canine teeth 48 fossilized remains 48 mandibles 48 snakes lizards 48 Australopithecus afarensis 48 dinos 48 Palaeontologists 48 triceratops 48 rhesus monkey 48 anthropoid 48 mouthparts 48 mantis shrimp 47 chimps 47 naked mole rats 47 nonhuman primates 47 mammalian 47 saber toothed cat 47 African savanna 47 giant tortoise 47 multicellular 47 marine invertebrates 47 apes 47 bipeds 47 martens 47 webbed feet