Mating Animals 1 Article 1 Attractiveness 1 Brain 1 CD11b antigen 1 Corticosterone 1 Cytokines 1 Evolution 1 Gene Expression Regulation 1 Illness Behavior 1 Inflammation 1 Lipopolysaccharide 1 Lipopolysaccharides 1 Male 1 Mate availability 1 Microglia 1 Rats 1 Rats, Sprague-Dawley 1 Sexual Behavior, Animal 1 Sexual disgust 1 Sprague Dawley rat 1 Tnf-alpha 1 Tumor Necrosis Factor-alpha 1 Weight Loss 1 adaptive immunity 1 adult 1 affect 1 animal 1 animal experiment 1