Related by context. Frequent words. (Click for all words.) 62 evolutionary 61 evolutionarily 57 speciation 52 evolutionary biologists 52 organism 52 single celled organisms 52 adaptive immune 51 multicellular 51 eukaryotes 51 Wolbachia 51 humans 50 Homo sapiens 50 genetic variability 50 mammalian species 50 mammalian 50 vertebrates 50 vertebrate 50 physiological 50 neural circuitry 49 genetic alterations 49 hominins 49 biochemical processes 49 circadian clock 49 tyrannosaurs 49 stomata 48 physiology 48 parasitic worms 48 single celled 48 dietary restriction 48 stem cell differentiation 48 nitrogen fixation 48 regulate gene expression 48 herbivore 47 embryogenesis 47 locomotion 47 rhinoviruses 47 heritable 47 genetic mutation 47 metabolism 47 organisms 47 mycobacteria 47 mammalian brain 47 vertebrate species 47 forelimbs 47 photosynthesis 47 nitrogen fixing 47 metabolic processes 47 evolution 47 mammals 47 senescence 47 quorum sensing 47 sensory neurons 47 Ardipithecus 46 neurobiological 46 heredity 46 carnivorous dinosaurs 46 metabolic 46 hermaphrodites 46 homo sapiens 46 neuronal activity 46 microflora 46 species extinctions 46 herbivores 46 diatom 46 protein synthesis 46 eukaryotic 46 habituation 46 photosynthetic 46 maladaptive 46 lineages 46 Oxidative stress 46 hydrological cycle 46 morphological 46 chloroplasts 45 diatoms 45 alternative splicing 45 desiccation 45 gene expression patterns 45 genetic variation 45 reproductive biology 45 neurones 45 synaptic plasticity 45 parasitism 45 larval stage 45 neuroendocrine 45 mutations 45 epigenome 45 homeostatic 45 biochemical pathways 45 innate 45 hominid 45 scientists theorize 45 calorie restriction 45 plasticity 45 meiosis 45 hominids 45 temperate zones 45 Australopithecus 45 evolutionary psychology 45 mutation 45 genetically