Geridos

Geridos is a fictional term used in speculative fiction to denote an amphibious humanoid species created for world-building. They are described as indigenous to the river-delta regions of the planet Erenos, and appear in multiple works of science fiction and fantasy with varying details.

Physically, adult Geridos typically stand about 1.3 to 1.6 meters tall. They have semi-aquatic adaptations, including webbed hands and feet, compact lungs and gill-like membranes enabling short periods of underwater respiration, and a mucus-secreting dermis to reduce friction and dehydration. Skin color ranges from olive to bluish-gray, and they have large eyes with vertically oriented pupils adapted to dim light.

Society and economy: They live in kin-based communities along waterways. Governance often relies on councils of elders and merit-based leadership. They practice fishing, reed boat construction, and wetland agriculture, with seasonal migrations tied to flood cycles.

Language and culture: The Gerido language is tonal and uses a system of gesture and sign language in interaction with sound. Oral tradition emphasizes river myths, navigation knowledge, and ecological stewardship. Cultural values include reciprocity, balance with the environment, and collective decision-making.

In fiction, Geridos serve as a lens to explore themes of coexistence and adaptation. Their portrayal varies by author, and some works depict tense relations with neighboring species, while others emphasize cooperation and cultural exchange.