For a well-disciplined military, higher ranking Peacekeeper officers have an extremely wide variety of uniforms to choose from besides the standard ones. They are mostly black, black and red, or very dark red, sometimes with brown and green, and made of leather or something like it, and they're all recognizably Peacekeeper designs, but why do they have so much diversity when they're supposed to be so conformist? Because the Peacekeepers aren't just a military, they are an entire culture of Sebaceans. They have aesthetics, so why shouldn't the higher ranking officers be allowed some degree of self expression as long as it's subtly reinforcing their uniformity? It might even be one of the Peacekeepers' psychological manipulation techniques, aimed at promoting troop moral and achievement, since ambitious soldiers are able to be promoted through the ranks to junior and senior officer status, at least.
In Farscape, particularly the quote at the top of that page, John Crichton rattles off a list of Sci-Fi heroes, and then says that he's not like any of them, instead likening himself to Dorothy Gale, from The Wizard of Oz. At face value, this makes sense, as Dorothy is an ordinary person in a crazy world like he is, but that applies to some of the other Sci-Fi heroes he lists as well. I didn't think much of it at first, but recently I realized how alike they really are: Both are regular people, doing their jobs, living in a backwater nowhere place (Kansas, Earth) who get sucked up by a swirling vortex (for Dorothy, a Tornado, and for John, a Wormhole) and deposited in a faraway place (Oz, the other side of the Galaxy). Their first act in the new land is to accidentally kill a relative of someone very important and apparently, very evil (Wicked Witch of the East, Crais' brother) and immediately make an enemy of the survivor. They both survive in this strange land by meeting up with the locals, including a deposed former ruler (Scarecrow, Rygel) and the big strong guy. Eventually, after searching for a way home, they each decide they much prefer the strange new world and choose to stay. - Terral
In "DNA Mad Scientist," Namtar offers D'Argo, Zhann and Rygel the way back home in exchange for Pilot's DNA, so they cut off his arm. Crichton is naturally appalled, but surprisingly so is Aeryn - who reasons that Pilot was not merely defenceless but an ally of the crew. Flashbacks from "The Way We Weren't," where she helped murder Moya's original pilot and later sold out our Pilot's benefactor - things she later deeply regretted, really explain why she is so appalled.
The episode "The Ugly Truth" plays heavily with the concept of perception, and how different people can see the same events different ways. Throughout the episode Crichton calls the Plokavians, the aliens interrogating them over a crime, "Plokavoids" (a Running Gag in the series is that Crichton frequently experiences difficulties pronouncing the names of various aliens and their species). When it comes time for the Plokavians to hear Chrichton's testimony, the flashback shows everyone on the crew calling them Plokavoids because their dialog is actually Crichton's retelling of the events.
Sikozu's initial refusal to accept evident facts at face value seems a bit strange if you only attribute it to her extensive education; after all, Jool was just as educated and much more capable of accepting and adapting to to things that run contrary to her knowledge. Then we find out that Sikozu is a bioloid; she wasn't educated at all, but programmed with the knowledge, which might explain why she insists on adhering to it even when it's contradicted by reality.
At the end of the Peacekeeper Wars, John's comment that "This is your playground" to Dargo Sun-Crichton, his son could be considered somewhat prophetic as Dargo Sun-Crichton is explicitly mentioned as having the Wormhole Knowledge within his DNA from his father (unlike John, we don't know this was removed), as well as having a small amount of Pilot DNA from his mother, which allows some command over Leviathans. These inherited traits give the potential for him to potentially revolutionise interstellar travel.
Zhaan's wardrobe choices. Her blue outfits look gorgeous to a human. But to a blue-skinned Delvian, wouldn't wearing a color so close to your own fleshtone seem kind of dull and bland? It would be like a human always wearing tans and browns. But maybe that's the point. Zhaan is a priestesses. Maybe Delvian priests wear blue *because* it is a "dull" color to them, as a form of modesty (much like how human monks used to wear dull brown robes).
Farscape had a character experience this in-canon about their experiences. At the end of the episode "The Locket", Zhaan is congratulating herself on helping the crew escape from a time anomaly, which led to time being rewound so that they never actually entered it. Then she realises that this might have led to the children and grandchildren that Aeryn had during two hundred years of subjective time trapped on a planet within the anomaly being erased from history. Stark speculates that they might still exist in some alternate timeline.
1812, the DRD that Crichton recruits from Elack at the beginning of Season 4, seems to be fully sentient. Kinda puts all those scenes from previous seasons of the DRDs being mowed down like grass by the Monster of the Week (or being sacrificed by Crichton and Co. themselves) in an unsettling light.
It's established after Talyn is born that Peacekeepers experimented on other Leviathans to try and make hybrid babies of Leviathan and Peacekeeper technology. However, these experiments failed due to the effects of the control collar, and wound up killing both the baby and the mother. At first this seems just sad until you consider: every Leviathan mother in that experiment was effectively raped while being able to do nothing but sit back and watch, and then unable to do anything to help themselves and their babies. Yeah, it's starting to make sense why guys like Crais and Scorpius are high figures in the military.
One-shot alien character M'Lee from the second-last episode of season one; M'Lee's "deal" is that she belongs to an unnamed species of calcivores, feeding primarily by killing animals and eating their bones. When she gets very hungry, she'll turn on sentients as well. Now, at the end of her episode, she gets "adopted" by Scorpius, and it's mentioned she was shipped away back to base in the next episode — but her assigned security guard has gone missing. No, that's not the Fridge Horror. The real Fridge Horror is, just what is Scorpius going to do when he learns his "adopted daughter" is a rapacious bone-eating predator? The most likely conclusions are that either he'll kill her, or, as speculated elsewhere on this wiki, he'll start feeding his subordinates to her if he deems them disloyal or incompetent...
If the Interions have screams that can melt solid metal, how the frell did they ever manage to become a spacefaring species? Seriously, can you imagine what their space-program was like? Their version of Neil Armstrong would be paraonoid the entire time.
That's one small stubbed-toe for an Interion, one big explosive-decomp-
Likewise, how did they ever build anything? You just know instead of letting the tires down on a car, the children would melt them off!
Well, maybe their building materials were non-metallic; maybe their screams only effect materials or metals alien to their home planet. It's worth noting that Jool and her relatives didn't have a spaceship of their own- they were hitchhiking.
Another thing to note: just how many Interon's have this sonic scream? In "Season of Death," Stark performs a Mercy Kill on one, and he screams before dying; it's not a sonic scream, though. Furthermore, the other two male Interons met in the series never demonstrate it when in pain. Now, does that mean that the sonic scream is an ability confined to Interon females, or is Jool an extremely rare mutation?
Or else it's something they can choose to do and not do, so they can scream normally.
... how can one "choose" how to scream in pain? Jool doesn't have much of a guage on it, considering it switches on the moment Aeryn twists her thumb. And in the case of the Mercy Kill-ed Interon: how - having just been awoken from cryosleep only to find yourself being stabbed with a syringe by a masked lunatic - are you supposed to choose to scream "normally"?
Peacekeepers are crippled by amounts of heat humans find barely uncomfortable. So why do they all wear black leather all the time?
More to the point, is it really leather at all? After all, Scorpius doesn't seem to be bothered by it when he's out of coolant rods. That said, when the temperature starts rising, you'll notice how quickly Sebaceans start ditching the leather-like clothes.
Maybe they just have a lower metabolic temperature than humans do? Produce less body heat, perhaps, so the leather-ish gear doesn't cause them to heat up as fast as it would for humans. But once excess heat starts getting poured on them, they ditch it so they can cool off faster?