I remember reading an article years ago about a village that put out an absurd amount of Olympic long distance runners. The article noted that the village was on a high plateau and far from other places. The extreme difference in height led to better lung capacity and the normalcy of having to travel by foot long distances just raised a bunch of people who conditioned their bodies from birth to be adept at long distance running. None of it resulted in any major changes in population physiology as it's just training your body to deal with environmental conditions after birth and doesn't cause the mutations in the genome that would mark evolutionary changes.
I mean, obviously there are some physical differences between races. They look different, some have more prevalence of certain diseases or conditions, but races are entirely a social construct. Scaled out, the differences in races aren't more severe than the differences in variability in smaller groups within a race, or even a family. It's like, yeah, uncle Steve's side of the family all have kinda pointy ears because he passed that on to his kids but his brother didn't pass that gene on but they're still family. Zoom out and view all humans not as different races but one giant group and uncle Steve's branch all just have darker skin or straighter hair, but they're still clearly part of the human family.
I want to say they're from the same episode? They were being interviewed about their experience during some event and instead of doing a voiceover that segues into it being acted out they did this creative choice of acting it out and having the one giving a deposition pause to turn to the camera to tell the bit they're saying in the interview.
I'm not remembering a lot of the details, but this is the type of thing that made me love DS9. The themes were generally the typical Trek fair, but that show had style. They had the balls to film things differently than other Trek shows and make them really interesting. It was so different but still so Star Trek at its core. It made things feel fresh.
That and the way it was set up, being on a space station that didn't move meant it felt less like a sector/monster of the week. It accomplished a lot of the same by having the new aliens come to them instead of the other way around as is typical, but it felt different I think because they were stationary. It felt more character-focused, and because they were basically hovering just over Bajor it meant there was a whole planet that was able to affect the show consistently as it grew and changed along with the dynamics of the crew/station, while not really being part of the direct scenery.