Yatarzs

Yatarzs are a fictional species native to the planet Xylos in the Andromeda galaxy. They are characterized by their bioluminescent skin, which shifts in color depending on their emotional state. This coloration ranges from calming blues and greens when content, to agitated reds and oranges when distressed or angered. Yatarzs possess a unique respiratory system, allowing them to breathe in atmospheres with high concentrations of methane and ammonia, which are toxic to most known life forms. Their diet consists primarily of crystalline growths found deep within Xylos's subterranean caves.

Socially, Yatarzs live in complex hive-like communities, with a clear division of labor among their castes. The primary caste is responsible for resource gathering and defense, while a smaller, specialized caste focuses on communication and knowledge preservation. Their reproductive cycle is long, with individuals reaching maturity over a period of several Xylosian decades. Yatarzs communicate through a combination of sonic pulses and intricate light patterns emitted from their skin. While generally peaceful, they are known to be fiercely protective of their home world and its resources. Explorers have noted their advanced understanding of astrophysics and their ability to manipulate gravitational fields on a localized scale.