“Sea horses have complicated routines for courtship, and tend to mate under full moons, making musical sounds while doing so. They live in long-term monogamous partnerships. What is perhaps most unusual, though, is that it is the male sea horse that carries the young for up to six weeks. Males become properly "pregnant," not only carrying, but fertilizing and nourishing the developing eggs with fluid secretions. The image of males giving birth is perpetually mind-blowing: a turbid liquid bursts forth from the brood pouch, and like magic, minuscule but fully formed sea horses appear out of the cloud.”