Pregnant male seahorse<unk>  is the incubation of one or more embryos or fetuses by male members of some species. Most species that reproduce by sexual reproduction are heterogamous—females producing larger gametes (ova) and males producing smaller gametes (sperm). In nearly all animal species, offspring are carried by the female until birth, but in fish of the family Syngnathidae (pipefish, seahorses and the leafy seadragon), males perform that function.
Male pregnancy
Male lactation
High-risk pregnancy
Postterm pregnancy
Pre-existing disease in pregnancy
Pregnancy
Multiple birth
Pregnancy loss