Kutols

Kutols are a fictional species featured in the science fiction novel "Project Hail Mary" by Andy Weir. They are an intelligent, silicon-based lifeform originating from the planet Erid. Physically, Kutols are described as large, crystalline beings with multiple limbs. Their bodies are composed of interlocking geometric shapes, and they communicate through a combination of light pulses and resonant frequencies.

The Kutols possess a highly advanced understanding of physics and astronomy, which they utilize for interstellar travel and the construction of complex machinery. They are characterized by their logical and analytical nature, often approaching situations with a detached, scientific perspective. Despite their alien physiology and mindset, the Kutols are depicted as capable of forming alliances and engaging in cooperative endeavors with other species, as demonstrated in their interactions with the protagonist of "Project Hail Mary." Their society is structured around principles of collective advancement and the pursuit of knowledge.