Siidiks

The siidiks are a fictional species used in speculative fiction and worldbuilding. They are typically depicted as intelligent, semi-aquatic bipeds adapted to life along freshwater systems, with social structures centered on riverine landscapes.

The name derives from the in-world Siid language, meaning water-dweller. Within their fictional taxonomy, siidiks are placed in the genus Siidix, family Siididae, order Siidiformes.

Individual siidiks range from about 1.4 to 1.9 meters tall. They show variation in skin tone from gray-green to bluish hues; some populations possess light, scale-like patterns and partially webbed fingers and toes. Eyes are adapted for low-light environments, and several depictions feature bioluminescent markings along the limbs or torso used for signaling.

Siidiks inhabit freshwater and estuarine zones of continental archipelagos and river networks. They build reed- or kelp-based shelters and practice a flexible foraging strategy, feeding on aquatic plants, invertebrates, and fish. They exhibit moderate territoriality and seasonal migration tied to rainfall cycles.

Descriptions vary, but common themes include social groups organized into clans or extended families with cooperative care of offspring. Communication employs a range of vocalizations and body signals, sometimes complemented by bioluminescent displays. Technology and art appear in more developed depictions, including pottery, weaving, and metalwork; ceremonial life often centers on water-related rituals.

In fiction and media, the siidiks appear across novels, games, and fan works with divergent interpretations. No single canonical portrayal exists, making them a flexible element in worldbuilding and storytelling.