Related by context. Frequent words. (Click for all words.) 49 feathered dinosaurs 48 woolly mammoth 45 marine reptiles 45 wooly mammoth 45 mammoths 45 Ardipithecus 45 anthropoids 45 Fruit flies 44 Diplodocus 44 tyrannosaurus rex 44 coprolites 44 evolutionary 44 Tiktaalik 44 snakes lizards 44 plesiosaur 44 genus Homo 44 Homo habilis 43 monkeys apes 43 woolly mammoths 43 H. erectus 43 Indohyus 43 toothed whales 43 saber toothed tigers 43 tetrapod 43 hadrosaur 43 hominins 43 hominid 43 Ardipithecus ramidus 43 prehistoric 43 Homo floresiensis 43 carnivorous dinosaurs 43 melanosomes 42 Paleontologists 42 theropod 42 Geneticists 42 dinosaurs 42 humans 42 scientists 42 Brachiosaurus 42 fossilized remains 42 bipeds 42 Neanderthals 42 gut microbes 42 Archaeopteryx 42 Neanderthal 41 Neandertals 41 Homo erectus 41 dinosaur 41 extinct species 41 canine teeth 41 baleen whales 41 megafauna 41 trilobites 41 tetrapods 41 Columbian mammoth 41 brontosaurus 40 Neandertal 40 theropods 40 mammals 40 Scientists 40 arthropod 40 SCIENTISTS 40 tyrannosaur 40 Adult stem cells 40 ground sloths 40 vertebrates 40 scientists theorize 40 Tyrannosaurus rex 40 Homo sapiens 40 palaeontologists 40 Australopithecus 40 Frans de Waal 40 hominin 40 marine iguanas 40 Cyanobacteria 40 Tyrannosaurus Rex 40 dinos 40 interbred 40 cave dwelling 39 Anthropologists 39 colossal squid 39 genetically programmed 39 Octopuses 39 dinosaurs roamed 39 clouded leopard 39 mammal 39 meat eaters 39 Neanderthal DNA 39 pterosaur 39 fossils 39 sauropods 39 single celled organisms 39 primate species 39 mole rats 39 geneticists 39 Fossilized 39 fossilized 39 species 39 multicellular 39 evolutionary biologists 39 velociraptors