Sirumos

Sirumos are a fictional species that appear 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. Sirumos are characterized by their unique biological adaptations to their home planet. They are large, quadrupedal creatures with thick, leathery hides and multiple eyes that allow for excellent peripheral vision. Their physiology is adapted to high gravity and a low-oxygen atmosphere.

The Sirumos are depicted as intelligent and technologically advanced, though their methods of communication and understanding of the universe differ significantly from those of humans. They possess a complex social structure and a deep understanding of interstellar physics, which they have utilized for their own survival and exploration. The interaction between Ryland Grace and the Sirumos forms a significant part of the narrative, highlighting themes of interspecies cooperation and the challenges of communication across vast cultural and biological divides. Their existence in the novel serves to expand the scope of the story beyond Earth and introduce a novel alien presence.