ERα is coextensive with hcrt/orx. ERα nuclei are represented by closed circles, hcrt/orx neurons are represented by open circles, and double-labeled ERα plus hcrt/orx cells are represented by stars. Numbers are in millimeters caudal to bregma. AHN, Anterior hypothalamic nucleus; fx, fornix; ot, optic tract; PVN, paraventricular nucleus; VMH, ventromedial hypothalamus; 3v, third ventricle.