Study reveals how retinoic acid regulates brood pouch formation and pregnancy of male seahorses

Regulatory role of retinoic acid in the brood pouch formation and pregnancy of male seahorses. Credit: SCSIO Seahorses have the unique characteristic of male pregnancy, which includes the carrying of many embryos in a brood pouch that incubates and nourishes the embryos, similar to the mammalian placenta. However, the regulatory networks underlying brood pouch formation […]