Related by context. Frequent words. (Click for all words.) 64 Falcarius 59 horned dinosaur 59 horned dinosaurs 58 theropod 57 dinosaur species 55 triceratops 55 feathered dinosaurs 55 carnivorous dinosaur 55 Albertosaurus 55 Apatosaurus 55 trilobite 54 hadrosaur 54 Fossilized 54 ichthyosaur 54 flatworm 54 T.rex 54 Raptorex 54 wooly mammoth 53 dinosaur 53 Chronic wasting disease 52 Gila monster 52 simian virus 52 Velociraptor 52 tyrannosaurus 52 mosasaur 52 plesiosaurs 52 tyrannosaur 52 predatory dinosaurs 51 dinosaur fossil 51 billed dinosaur 51 baleen whale 51 carnivorous dinosaurs 51 Diplodocus 51 velociraptor 51 ribonucleic acid RNA 51 simian immunodeficiency virus 50 sea scorpion 50 tyrannosaurus rex 50 protein fragment 50 Tyrannosaurus 50 mitochondrial genome 50 Columbian mammoth 50 sauropod 50 hominid species 50 wormlike 50 dino 49 T rex 49 Scientists theorize 49 theropods 49 brontosaurus 49 crocodilian 49 Otzi 49 Tyrannosaurus Rex 49 wooly mammoths 49 millipede 49 apelike 49 Brachiosaurus 49 stegosaurus 48 saber toothed cat 48 Mummified 48 teosinte 48 protozoan 48 T. rex 48 arthropod 48 mottled brown 48 hadrosaurs 48 Archaeopteryx 48 dung beetle 48 Indohyus 48 Stegosaurus 48 garter snake 48 scarab 48 transmissible spongiform encephalopathies 48 Tiktaalik 48 scorpion venom 48 nematode worms 48 saber tooth tiger 48 Tasmanian tiger 48 anteater 48 cycad 48 pterosaur 48 Ardipithecus ramidus 47 fossilized bones 47 lowland gorilla 47 rhesus monkey 47 Allosaurus 47 parasitic worm 47 snail shell 47 dinos 47 pterodactyl 47 bird beak 47 dinosaur eggs 47 pinhead sized 47 Amur leopard 47 T. Rex 47 arctic fox 47 constrictor 47 lizard 47 H. erectus 47 Tyrannosaurus rex 47 ground sloths