This image shows vesicular nucleotide transporter (green) and Fluorogold (magenta) immunoreactive cells in the A1 region of the hindbrain of a female rat treated with Fluorogold, a retrograde tracer, into the anteroventral periventricular nucleus (AVPV) where kisspeptin neurons responsible for ovulation are located. For more information, see the article by Inoue, Hazim et al. (pages 2140–2152). Cover image: Naoko Inoue and Safiullah Hazim.