Related by context. Frequent words. (Click for all words.) 54 primates 50 capuchin monkeys 50 nonhuman primates 49 humans 47 monkeys 47 capuchins 46 Humans 45 Primates 45 nonhuman 44 mammalian species 44 amoebae 44 primate 44 cichlids 43 Mammals 43 Transgenic 43 anteaters 43 squirrel monkeys 43 spider monkeys 42 vertebrates 42 mice 42 mammals 42 theropods 42 Fruit flies 42 olfaction 42 Toxoplasma 41 humanlike 41 herpes viruses 41 chimpanzees 41 hominins 41 marmosets 41 hermaphrodites 41 mockingbirds 41 phylogeny 41 apes 41 Mice 41 mammalian 41 simian immunodeficiency virus 40 sociality 40 P. falciparum 40 primate species 40 Ardipithecus 40 innate 40 snakes lizards 40 evolutionary adaptation 40 mutant mice 40 asexual reproduction 40 Wolbachia 40 chameleons 40 chimps 40 macaques 40 rhesus monkeys 40 rhesus macaques 39 creatures 39 Homo sapiens 39 neurones 39 forelimbs 39 parasitic worms 39 roundworms 39 domesticated 39 bonobos 39 tamarins 39 Geneticists 39 homo sapiens 39 taxa 39 relatedness 39 avian species 38 Lemurs 38 avian flu viruses 38 multicellular 38 synaesthesia 38 evolutionarily 38 genetically programmed 38 avian influenza viruses 38 marsupials 38 Chimpanzees 38 crocodilians 38 zebra finches 38 macaque monkeys 38 animals 38 single celled organisms 37 herbivores 37 marine invertebrates 37 African savanna 37 Parrots 37 nocturnal animals 37 spiritual beings 37 vertebrate 37 baboons 37 chimeras 37 phylogenetic 37 adaptive immune 37 skinks 37 multicellular organisms 36 domestication 36 olfactory 36 genetically inherited 36 rodents 36 intelligent beings 36 ant species 36 sociability 36 arboreal