The Jacanas are a group of tropical waders in the family Jacanidae. They are found in the tropical regions around the world. They are noted for their elongated toes and toenails that allow them to spread out their weight while foraging on floating or semi-emergent aquatic vegetation. They are also among the rare groups of birds in which females are larger and several species maintain harems of males in the breeding season with males solely responsible for incubating eggs and taking care of the chicks. IOC recognize 8 species in 6 genera.