Related by context. Frequent words. (Click for all words.) 62 rhesus monkeys 59 macaques 58 monkeys 57 rhesus macaques 55 rhesus monkey 53 primates 52 squirrel monkeys 51 capuchin monkeys 50 chimps 50 macaque 50 chimpanzees 49 genetically altered mice 48 nonhuman primates 47 fruit fly Drosophila 47 imaging fMRI 47 marmosets 47 orangutans 47 Primate Research 46 primate species 46 marmoset 46 primate 46 capuchins 46 mice 45 gibbons 45 locomotor 45 specimens 45 transgenic mice 45 bottlenose dolphin 45 animals 44 fruit flies 44 mouse embryos 44 fMRI 44 genetically modified mice 44 bonobos 44 fecal samples 44 genetically engineered mice 44 electrophysiological 43 olfaction 43 mammalian species 43 humans 43 functional magnetic resonance 43 cichlids 43 zebrafish 42 anteaters 42 zebra fish 42 Zoo keepers 42 cultured cells 42 herpes viruses 42 zoologists 42 gibbon 42 tapir 42 dolphins 42 embryos 42 specially bred 42 orchid species 42 clouded leopard 42 mutant mice 42 fallow deer 41 gene expression profiles 41 visual cortex 41 spider monkeys 41 elephants 41 lab rats 41 olfactory bulb 41 orangutan 41 piglets 41 pandas 41 knockout mice 40 mammals 40 avian species 40 giant tortoises 40 mirror neurons 40 orang utans 40 roundworms 40 bottlenose dolphins 40 neuroscientists 40 hornbills 40 leatherback turtles 40 monkey 40 captive breeding 40 RNA molecule 40 sea slugs 40 reproductive biology 40 lemurs 40 littermates 40 somatic cells 40 forelimbs 40 pangolin 40 Aedes aegypti 39 Neuroscientists 39 pangolins 39 cloned embryos 39 marsupials 39 mice genetically engineered 39 biological molecules 39 fertilized embryos 39 gorillas 39 neuronal activity 39 elephant seals 39 animal 39 neuronal cells