The Avali are unique in biology. Resembling a cross between a large rabbit and a turkey, Avali stand bipedally, with a digitigrade posture. From head to toe, they are covered in soft feathers varying in length, with two large wings that possess rudimentary digits at the wrist/hand, enabling to manipulate objects in a dexterous fashion. With four long, rabbit-like ears, Avali are NOT mammals, but are similar to prehistoric Terra dromaeosauridae. Avali blood is pale violet in color, with a tint evident in their open mouths, bare skin, and other soft tissues. Males and females are most easily told apart by their feathers, as there are no other external differences. Females tend to have muted, two-tone feathers, often with speckled patterns, while males have brightly colored, iridescent bands across much of their bodies.
A typical Avali stands at around 3'9 feet (losers). Their wings allow full flight on planets with low gravity and thick atmosphere, such as planets like Avalon, their homeworld. However, on higher gravity worlds, flight is impossible. Closest they may get is to some semblances of gliding and being able to break falls. Unlike humans, the Avali rely on liquid ammonia as the primary solvent in their biology, which makes them extremely well adapted for cold environments, but renders what humans consider Goldilocks worlds similar to Earth intolerably hot. It is important to note that the Avali are still carbon-based organisms; their systems merely use liquid ammonia instead of water.
The boiling point of ammonia under standard pressure is -27 Fahrenheit/-33 °C. In theory, this means any creature with ammonia as a major component of its blood would embolize when exposed to higher temperatures. However, this is only true under "standard conditions". Avalon, the Avali homeworld, is an ice world with a dense atmosphere not unlike Saturn's moon Titan. It has a surface pressure around 50% greater than Earth's, pushing the boiling point closer to -27 Celsius.
Avali culture is highly diverse, with many varying customs, ideologies, and ideas. However, all must fall under regulatory guidelines for the Alluminate. Said guidelines may be rather questionable and pointless, leading to some leaving the Alluminate to practice their culture somewhere else.