Related by context. Frequent words. (Click for all words.) 69 Tiktaalik 63 Australopithecus 63 Archaeopteryx 62 Ardipithecus 62 theropods 60 vertebrates 59 sauropods 58 hominid 58 hominids 58 Homo habilis 58 carnivorous dinosaurs 58 multicellular 57 vertebrate 56 Neandertals 56 pterosaurs 55 Homo erectus 55 Homo sapiens 55 pterosaur 55 anatomically modern 55 Denisovans 55 mammals 55 tyrannosaur 54 forelimbs 54 tyrannosaurs 53 taxa 53 coelacanth 53 baleen whales 53 T. rex 53 Homo floresiensis 53 sauropod 52 Australopithecus afarensis 52 fossils 52 Late Cretaceous 52 single celled 51 single celled organisms 51 melanosomes 51 mammalian 51 dinosaurs 51 eukaryotes 51 phylogenetic 51 phylogeny 51 diatoms 50 arthropods 50 megafauna 50 plesiosaur 49 morphologies 49 landmasses 49 cephalopods 49 Archaea 49 evolutionary 49 vertebrate species 49 copepods 49 triceratops 49 moa 49 zooplankton 48 clades 48 Neanderthals 48 herbivorous 48 archaea 48 fossil 48 Cretaceous Period 48 common ancestor 48 Longrich 48 organisms 48 primate species 48 lungfish 47 hind limbs 47 herbivores 47 humans 47 mammoths 47 phylum 47 lineages 47 thylacine 47 fossilized remains 47 sea anemones 47 bipedal 47 bony fish 47 invertebrates 47 terrestrial planets 47 diatom 47 cilia 47 evolutionarily 47 eukaryotic 47 hunter gatherers 47 introns 47 humanlike 46 herbivore 46 marine organisms 46 giant tortoises 46 morphological 46 Pleistocene 46 mammalian species 46 Triceratops 46 gobies 46 evolutionary biologists 46 biped 45 sperm whales 45 morphology 45 mutational 45 squids 45 locomotion