Holvians
Holvians were a fictional human subspecies featured in the science fiction novel "The Martian Chronicles" by Ray Bradbury. In the story, the Holvians are an ancient and highly advanced civilization that inhabited Mars long before humanity's arrival. They are depicted as ethereal beings, possessing telepathic abilities and a deep connection to their planet's environment. Their civilization is described as having achieved a state of advanced spiritual and technological development, culminating in their eventual transcendence or departure from the physical realm.
The Holvians are presented as a cautionary tale about the potential dangers of unchecked technological progress