Related by context. Frequent words. (Click for all words.) 59 reproduce asexually 58 asexual reproduction 56 genetically programmed 55 hunter gatherer societies 55 MHC genes 55 Wolbachia 55 polygyny 54 GBV C 54 asexuality 54 amphipods 54 nonhuman animals 54 commensal 54 Arranged marriages 54 contagious yawning 53 asexual 53 DHEAS 53 asexually 53 feminine traits 53 T. gondii 53 humans 53 prairie voles 53 rotifers 53 genetic variability 53 placental mammals 53 Premarital sex 53 monogamous relationships 53 plesiosaurs 53 Evolutionary biologists 53 Evolutionary theory 52 reproductively 52 gut microbes 52 symbionts 52 hermaphrodites 52 coevolution 52 sociality 52 sexual dimorphism 52 lactobacilli 51 matriarchal society 51 vaginal secretions 51 internalized homophobia 51 Sexual intercourse 51 imprinted genes 51 primate evolution 51 crocodilians 51 Genital herpes 51 Toxoplasma 51 genetic predispositions 51 Promiscuity 51 germ cells 51 folate deficiency 51 serial monogamy 51 courtship rituals 51 antisocial behaviors 50 microbiome 50 HLA genes 50 evolutionary adaptation 50 fecundity 50 yellow legged frogs 50 reproductive hormones 50 methanogens 50 single celled organisms 50 procreate 50 multicellular organisms 50 heterosexual intercourse 50 Saturated fats 50 sex hormone estrogen 50 gut microbiota 50 species 50 H pylori 50 Forced marriages 50 herpes infection 50 herbivorous 49 larval stages 49 toothed whales 49 platypuses 49 autistic traits 49 H. sapiens 49 impulsive behaviors 49 Klotho 49 oestrogens 49 prokaryotes 49 primal instinct 49 macroevolution 49 nonhuman primates 49 melanogaster 49 monogamous 49 undomesticated 49 mole rats 49 vertebrate species 49 evolutionary origins 49 microbiota 49 monogamy 49 hormone imbalances 48 Sea otters 48 ovarian function 48 naturally occurring substances 48 gut flora 48 mammals 48 photosynthetic organisms 48 Indohyus 48 methylation patterns