Related by context. Frequent words. (Click for all words.) 50 evolutionarily 48 behavioral traits 47 innately 47 monogamous 44 females 44 monogamy 44 sociality 44 polyandry 43 asexual reproduction 43 hermaphrodites 43 evolutionary adaptation 43 male 43 mating 43 courtship rituals 43 males 43 feather flock together 43 essentialist 42 mutualism 42 relatedness 41 maleness 41 nonhuman primates 41 Masculine 41 immutable 41 natures 41 biologically 41 principle 41 evolutionary 41 hermaphroditic 40 trait 40 innate 40 genetically programmed 40 traits 40 moralities 39 masculine 39 evolutionary psychology 39 mating rituals 39 territoriality 39 morphologically 39 heterosexual males 39 pluripotency 38 behavioral patterns 38 crocodilians 38 reproductive biology 38 behave differently 38 Darwinian 38 monogamous relationships 38 mating ritual 38 characteristics 38 lesser beings 38 lineages 38 copulate 37 altruism 37 Biologically 37 germline 37 sexes 37 speciation 37 alpha male 37 monogamous relationship 37 complementarity 37 universals 37 submissive 37 selectively bred 37 humans 37 nature 37 interbreeding 37 heritable 37 macaques 37 mating habits 37 procreate 37 biological anthropologist 37 asexual 36 presupposition 36 genetically 36 alpha males 36 behave 36 X chromosomes 36 genetic variability 36 evolutionary biologists 36 nonaggressive 36 admirable trait 36 herbivorous 36 symbionts 36 crossbreeds 36 Sexual orientation 36 dogmatically 36 skinks 36 differentiations 36 pheromones 36 naturally 36 fruit fly Drosophila 36 unalterably 36 naturally gravitate 36 Homo sapiens 36 diploid 36 outcompete 35 procreation 35 heterosexual 35 intrinsic 35 gravitate towards 35 characteristic 35 personality traits