The Orcubor are a sapient race of aluminum-based life forms native to the planet Gohbrin in the Ventemir Galaxy. They require extremely high temperatures of over 1850 degrees celsius to survive. Anything much cooler than that causes the silicon dioxide they use as a solvent to solidify, causing an excruciating death. This species is bipedal, with an average height of four meters in height and weigh well over 1000 kilograms.
They are a fairly minor species in the Entente of Ventemir, not even accounting for a thousandth of a percent of the population. Even so, many have taken on leadership roles within the nation. They have disproportionately high representation among various governmental organizations, likely because of their unique way of conceptualizing the world.
Unlike most species that use water or liquid methane as their solvent of choice, the Orcubor use liquid silicon dioxide (quartz), hence, the extremely high temperatures they need to survive. Aluminum-based biochemistry is a rare trait among species in the universe, as the majority of planets close enough to their star to hose life like this burn up or have their atmospheres stripped away to nothing before life can emerge. When the Orcubor were first discovered, many exobiologists were very interested in learning about their biochemistry.
The large amount of heat energy on their planet makes most traditional organic molecules quickly break down. Thus, different processes are used. The Orcubor are very cool compared to their environment. All life on the planet is like this. The hostile planet has a thick atmosphere, which is the only reason any liquid silicon dioxide can exist on it at all. All life forms, save for extremophiles, take advantage of the fast winds of Gohbrin by possessing large heat-sinks on their bodies. The heat is radiated away, allowing them to maintain an internal temperature which allows for aluminum-based chemistry to be possible.
This cool temperature allows them to take advantage of this heat difference (heat flux) to generate energy. In a process creating a tiny electric charge, they then convert this charge into high-energy molecules (called Alliose) which are then used to drive biological processes.
When Orcubor die, they actually heat up, rather than cool down, distinguishing them from most species that keep themselves at higher temperatures compared to the environment.
They naturally generate most of the energy they need from the environment. However, their expensive brains require a lot of energy to keep cool. They eat the more efficient energy producers on their planet, which are Fungi-like organisms. This also lets them gather nutrients such as Vanadium and Osmium Oxides which are chronically short in the crust of the planet.
At the smallest level, they are composed of aluminum based proteins. Their genetic material is stored in a sequence of "allimino acids." Essentially meaning that the protein they use for general cellular processes and how they store genetic material are the same. However, the genetic material has no purpose besides storing information.
At the cellular level, the processes are less alien. Things like neurons, immune cells, skin cells, and other common-place cells are all present.
The Orcubor have large sails on their backs, this serves the purpose of radiating heat away from their body. This sail is held up by bone-like projections, and is remarkably tough for being only a fraction of a millimeter thick in some places. The Orcubor take advantage of the common aluminum on their world to reinforce this sails and increase its conductivity of heat. This sail is covered in thousands of lateral slits that increase air-flow and increase it's surface area as much as possible.
On top of their large bodies rests a head. This head contains most of the brain, but over thirty percent of their "grey matter" is located in their torso. Two proportionally thin arms and proportionally thick legs are attached to the torso. The legs are for supporting their heavy body, while the arms are mostly for fine manipulation of objects. Although, legs can be used if need be. However, the strength of these limbs makes it difficult to handle objects with care.
The species first came to be almost one million years ago. Self-awareness was selected for due to the need to outwit large predators and to craft weapons better than the simple stones their predecessors used.
Like basically every self-aware species, they were divided into many tribes and nations during the beginning of their history. While at first a more collectivist society, they gradually developed concepts of trade and wealth at the same time as the first true nation-states arose.
Due to the extremely high temperatures of their planet, most technology was physically impossible for them to develop. Delicate things like particle colliders, most types of computer screens, and nuclear reactors just couldn't be created. This was a severe handicap in their technological advancement. However, this didn't stop them from creating an ecumenopolis on their planet. However, this took the species over one million years, far longer than it took humans.
It wasn't until 29874 when a probe from The Lowuks-Entente detected the large amount of radio-waves coming from the Orcubor. They began to communicate and found that the planet had no way to launch objects into space (the high gravity and the high temperatures made it impossible).
They decided to develop a craft that would allow the Orcubor to travel into space. After gaining this technology, the Orcubor continued to develop their planet, as they now had access to Type II technology. They began to extend the life of their star, build solar shades to help manage heat disposal (even as hot as they are, an ecumenopolis can become uninhabitable if heat is not dissipated), and began harvesting asteroids.
They only recently became fully Type II recently in 97988 CE.