• Despite what it's established in the sequel and from what Jared Bush said, reptiles and birds are not sentient in my interpretation and will stay that way. The world of Zootopia's already confusing enough regarding the debate of what carnivores can eat. I'm pretty sure carnivores can't live off just fish, bugs, and plant stuff generally. Unless in the world carnivores have gotten so world without eating prey that they evolved their bodies to withstand a vegetarian diet, then rather instead of them being unable to eat meat as a whole, I'd prefer their usage to be more "limited". Maybe from the fears of prey thinking they'll get the "urge" to eat prey again, which of course, is just a false fear.

• Since reptiles and avians aren't sentient in this interpretation, predators are able to eat them freely. Like, that's literally an immediate problem solver but due to certain "fears" of them getting the urge to eat prey mammals again, it's forbidden for a predator to eat (non-mammalian) meat in front of mammalian prey. Though, this doesn't mean it's not allowed for a mammalian prey to not mind it. This won't land them in jail however, as long as it's done "non-deliberately", but such requirements are up for debate. • Non-mammalian animals predators usually eat are non-mammalian domesticated animals, such as chicken and turkies. Since most domesticated animals irl are mammalian, it's often only just avian species, usually chicken and turkies, that they rely on eating. I mean, better than just eating fish, bugs and plant food. • Predators usually rely on chicken, turkey, and a variety of fish species for their supplies.

• Currency such as "Zoonos", or "Zootopian Zoonos" are added. Its abbreviation is Z or ZZ. I don't like the fact the currency in the movie's just... the regular USD stuff. Of course, it's a nothingburgr and doesn't really break anything. But to me personally, I kind of prefer the world abstaining from any resemblance of "real life", as in, I really want Zootopia as its own identified world. Again, a complete nothingburger of a thing to complain about but my brain just couldn't stop yelling at me to make up currency for Zootopia after hearing the elephant say "fifteen dollars".

• If we were to convert it to USD, one Z would equate to 5 USD. One USD would equate to 0.15 Z. A million USD would equate to 5,000,000 Z. (still working with this, not official lol)

• The currency letter or Zoonos is ₳, the "A" representing the animals of Zootopia. In some districts, its represented with a crossed "Z" instead.

• The currency functions the same as American money with some slight inspirations of how money conversation works in Mexico and African currencies.

• The singular form for Zoonos is "Zoono" or "Zoon", depending on district.

• Its obverse (the front of the currency) showcases the city hall under a rainbow, residing in Downtown Zootopia. The reverse (the back of the currency) shows the general map of Zootopia. • The currency may vary depending on the district. Only two districts have a slight difference with its currency. Other than that, they're all practically the same. The obverse is left unaffected regardless. • In the Nocturnal District, the reverse is instead a map of the Nocturnal District. • In the Rainforest District, the reverse is instead a map of the Rainforest District.

Unlike what the stinky developers of the movie did and removed bats, they, and the would-be area of Zootopia, the Nocturnal District, now exists!

• The Nocturnal District is the least populated area of Zootopia. • Population of Mammals in the Nocturnal District

• Bats: 64.39%
• Moles: 15.22%
• Foxes: 7.78%
• Wolves: 4.12%
• Honey Badgers: 2.85%
• Antelopes: 1.55%
• Felines: 1.17%
• Rabbits: 0.74%
• Otters: 0.33%
• Bears: 0.21%
• Others (Sheeps, Yaks, etc): 1.64%

• The district functions like the Rainforest District, existing under separate subdistricts than one full district.
• The Nocturnal District is known for its excessive tunnels, with an intricately detailed system that allows for underground travel. The district often coins it as "Undertraveling". The tunnels span across Downtown, Savanna Central, and some parts of the Rainforest District (small bits only as tunnels are next to impossible to make in the Rainforest District).

• The Nocturnal District was theorized to have lasted longer than a majority of Zootopia's areas.

• It was the last district to be officially apart of Zootopia's geography.

• It is the only area in Zootopia that has natural stalactite/stalagmites.

• It is the cheapest area in Zootopia to live in.

• It is the only area alongside the Rainforest District to have its own language in a specific subdistrict. It has two of them. One, which is an old, cultural writing system called "Pteropern (pIT-tEAr-oh-pURn)" (named after Pteropus neohibernicus, the scientific name of the Great Flying Fox; in terms of notes, this is not their reason) and a known, spoken one called "Neiern (neiGH-urn)".
• Pteropern and Neiern are a tonal languages, relying on certain frequencies and pitch patterns to differienate word meanings. This makes it a language nearly reserved for bats as any other mammal would need to spend years perfecting the frequencies, as the frequencies are incredibly specific to the specific bat species at hand.
• The frequencies are determined through screeches rather than what most would expect when they hear the phrase 'tonal language'. Some preferred calling it a 'screech-tonal language', or a 'scretonal language' to help differentiate it.

• The "main" area of the district is in the northwestern side of Downtown Zootopia, sandwiched in between the Mossma and Epiphyie subdistricts of the Rainforest District.

• Bats and Moles make up the majority of the population in the district, but other animals, such as Foxes, Honey Badgers, are told to have lived there as well. However, bats and moles are more expected to be native to the district compared to any other mammal living there. Large or taller animals, such as elephants, rhinos, hippos, and giraffes, are usually discourged from the locals to live in the district. It is unclear of the definite reasons, but the more common reasons delve down to a few reasons:
• Fears of the foundations being damaged due to the sizes of the mammals being unable to support the weight of the buildings.
• An elephant's/rhino's/hippo's stomps may upset the ground foundation as most of the standing architecture in the districts cater to the weight of the bat.