Related by context. Frequent words. (Click for all words.) 57 anthropoids 56 Ardipithecus ramidus 56 hominins 56 H. erectus 55 feathered dinosaurs 55 Indohyus 55 theropod 54 carnivorous dinosaurs 54 hominids 54 fossils 54 saber toothed tigers 54 Australopithecus 54 mole rats 54 fossilized remains 53 hominid 53 Homo sapiens 53 Ardipithecus 53 Australopithecus afarensis 53 termite mounds 53 marine invertebrates 52 Homo erectus 52 convergent evolution 52 afarensis 52 hominin 51 chimpanzees 51 tetrapods 51 placental mammals 51 savanna 51 platypuses 51 species 51 Neandertal 50 phylogeny 50 Homo habilis 50 genus Homo 50 Tiktaalik 50 primate species 50 sauropods 50 vertebrate species 50 genetic variability 50 mammals 50 bipedalism 50 crocodilians 50 microfossils 50 mammal 50 systematics 50 interbred 50 cowbird 49 Frans de Waal 49 genetic diversity 49 tetrapod 49 African savanna 49 simian immunodeficiency virus 49 Neandertals 49 theropods 49 fossil 49 baleen whales 49 anthropoid 49 chimps 49 habitats 49 parasitic worm 49 terrestrial ecosystems 49 temperate forests 49 middens 49 biogeography 49 herbivorous 49 trilobites 49 anatomically modern 49 T. gondii 49 taxon 48 morphologically 48 tapirs 48 homo sapiens 48 forelimbs 48 genetic variation 48 toothed whales 48 marine iguanas 48 arthropod 48 flightless birds 48 humans 48 prehistoric 48 coelacanth 48 marine reptiles 48 vocalisations 48 apes 47 ground sloths 47 megafauna 47 Archaeopteryx 47 Late Cretaceous 47 tyrannosaurs 47 sauropod 47 Diplodocus 47 hunter gatherers 47 vertebrates 47 tyrannosaur 47 herbivore 47 biped 47 palaeontologist 47 giant tortoises 47 migratory patterns 47 subfamily 47 multicellular