Koplans

Koplans are a fictional species featured in the science fiction novel "Project Hail Mary" by Andy Weir. They are an alien race encountered by the protagonist, Ryland Grace, during his mission to save Earth. Koplans are described as large, quadrupedal creatures with thick, leathery hides and multifaceted eyes. They possess a unique biological adaptation that allows them to survive in extreme environments, specifically in the presence of high levels of radiation. Their bodies are designed to absorb and process radiation, which they use as a source of energy.

The Koplans communicate through a series of clicks, whistles, and subtle body movements, a form of communication that Ryland Grace initially struggles to understand. They are depicted as a technologically advanced civilization with a deep understanding of astrophysics and interstellar travel. A key aspect of the Koplans' role in the narrative is their shared threat with humanity. Both species face an existential crisis caused by the same cosmic phenomenon, leading to an unlikely alliance. Their physiology and biology are a significant plot point, providing scientific challenges and solutions within the story. The Koplans' societal structure and motivations are explored as Grace interacts with them, revealing a complex and ancient culture.