title: Single placentas in the rhesus monkey.
mesh_terms: D000818:Animals; D010064:Embryo Implantation; D005260:Female; D005838:Genotype; D008251:Macaca / Q000033:anatomy & histology*; D008253:Macaca mulatta / Q000033:anatomy & histology* / Q000502:physiology; D008297:Male; D010920:Placenta / Q000033:anatomy & histology*; D011247:Pregnancy; D011336:Probability; D012621:Seasons; D012737:Sex Factors; D012744:Sex Ratio