Unique environments are an interesting element. For example, if the aliens come from a planet that is mostly water but has extreme pressures, like Europa. Their evolution would be shaped by the need to survive in those deep, dark waters. Another interesting part could be their method of reproduction. Maybe they reproduce by splitting like some bacteria on Earth, but in a more complex and intelligent way.
The origin of their intelligence can be really fascinating. In an alien origin story, perhaps their intelligence developed as a response to a threat that was unique to their planet, like a constantly erupting volcano that released gases they had to learn to avoid. Also, their communication methods can be interesting. Instead of sound or light signals like we use, they might use some form of energy transfer that we can't even perceive yet.
The role of chance in their evolution is an interesting aspect. For instance, a random mutation that gave them the ability to manipulate energy in a certain way could be a big part of their origin story. Also, how they interacted with other species on their planet in the early days of their evolution. Maybe they had a symbiotic relationship with a plant - like life form that provided them with a special kind of energy, which in turn led to their development into a more advanced species.
Chapter 256, ", you've guessed it, right?", is the clearest early answer because it turns Exterminators's situation into a concrete plot event. The setup is When Gu Hang received the battle report a step ahead, he knew that..., but the pressure keeps building through He said to his mother, who appeared somewhat haggard and disheveled,....
Chapter 277, ", Irong Fatches", is the clearest early answer because it turns Blackbird Heavy Industries's situation into a concrete plot event. Early on, Just as she began to wonder if her life would simply pass by on.... By the end, They're just simple automated machines, just bumping up the degree of....
Chapter 254, ", How Could There Be Interstellar Warriors?", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter gives readers a real answer by opening on Fifteen red-armored warriors, that naturally meant Phoenix. and ending on This was the situation that the hastily assembled interception force....
Chapter 339, ", Fine Gold, Knight and Titan", is the clearest early answer because it turns Gu Hang's situation into a concrete plot event. The chapter gives readers a real answer by opening on He already had the name in mind, "Alliance National Knights."... and ending on Why would that be called epic technology?.
Chapter 253, ", Swift as the Wind, Fierce as Lightning", is the clearest early answer because it turns Rage Owl Star's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Nes Luman and Gu Ming, after a conflict erupted, had to reconcile... and follows through with These two forces comprised fifteen red-armored giants and more than a....
Chapter 260, "Offering an Apology with a Thorny Branch", is the clearest early answer because it turns Luman Kingdom's situation into a concrete plot event. The setup is Yassago accepted Gu Hang's terms by default, followed immediately by..., but the pressure keeps building through When the news that both marquesses had been stabilized reached Gu.... Once the chapter lands on Perbov had seen his portraits and photographs;
Chapter 290, ", Western Desert Campaign Settlement", is the clearest early answer because it turns Operation Flash Tail's situation into a concrete plot event. A useful checkpoint is the way the scene starts with He hadn't committed the gravest of offenses, such as treason,... and follows through with Once Blackbird recovered and the Mechanical Legion resumed positions....
Chapter 381, ", Reverse His Mother's!", is the clearest early answer because it turns Isabel's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Iron Curtain Queen, it's been a long time." Isabel waved her hand and... and follows through with More labor means more land can be cultivated, which of course makes.... By the close, Let's talk about something else, something cheerful., and the chapter closes with "On Heijian Star, it's much the same;
Chapter 343, ", Creeping City", is the clearest early answer because it pushes Nest Capital into a new phase or setting. The chapter turns that into something concrete by moving from Under the cover of various types of firepower, the soldiers in the... to This was almost a mutiny, the kind not even the military police could....
Chapter 269, ", The West Coast of the Continent", is the clearest early answer because it turns Alliance's situation into a concrete plot event. It opens with Regarding the increase in death penalties, Gu Hang was somewhat... and closes on Now, with the sudden replacement by public servants cultivated by the....