Seahorses, pipefish, and seadragons, including the weedy seadragon, are the only species in which the male carries the developing eggs.

Like their relatives the seahorses, male weedy seadragons carry and brood the developing eggs externally below their tail. Seadragons, seahorses, and pipefish are the only species in which the male carries the eggs.

Brooding males have been observed in New South Wales from mid-winter to mid-summer, but never from February to June, despite sightings of over 350 seadragons during this period. A more recent study has confirmed this and also indicated that some males exhibit multiple pregnancies in a season.

Males brood two batches of eggs per breeding season, and females are also able to produce multiple broods per season.

^{• Image | © Klaus Stiefel, Some Rights Reserved (CC BY-NC 2.0)
• Sources | (The Associated Press, 2008; Dawson, 1985; Dragon Search, 2000; Forsgren & Lowe, 2006; Frostic, 2000; Pollom, 2017; Sanchez-Camara, Booth, & Turon, 2005; The Wikimedia Foundation, 2019)}

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