Just know that before, the clans lived in a forest with a river. Currently, they live surrounding a lake.
One of the cat clans is RiverClan. The cats of RiverClan are great at swimming and are graceful. Their main food source is fish.
Another one of the cat clans is ThunderClan. These cats are known for their bravery, and also being a bit snobbish. Their source of food are woodland animals such as birds, voles, and mice.
Another one of the clans is WindClan. They are known for being very quick and fast, living in the open moors where rabbits live. Their main source of food are rabbits.
One other clan is ShadowClan. Because ShadowClan lives in the dense forest, they are known for being stealthy, as they have adapted to their surroundings. Their main source of food are woodland animals, but they also sometimes eat amphibians.
Rogues live on unclaimed territories. Their main source of food is leftovers from scrap cans (trash cans). They also eat woodland animals or whatever they can find sometimes.
Kittypets live in Twoleg dens (human houses). Their main source of food is kittypet slop (kibble and other cat food types) .
SkyClan is hugely known for its disappearance when Twolegs came onto their territory to make Twoleg dens. After a long stretch of time, SkyClan had came back to the clans. Although, the clans weren't living in the forest anymore. They were living by a lake. Now, SkyClan territory is between ShadowClan and ThunderClan. ShadowClan's leader agreed to give some of ShadowClan's territory to Skyclan. They are known for being able to jump high, as their previous camp was located in a gorge after they were driven out from their forest territory. Their main source of food are woodland animals.
StarClan is where good cats go when they die. They are connected to medicine cats and leaders to convey messages for prophecies and warnings. StarClan, unlike the other clans, is a place among the stars. Cats who go there aren't in independent clans, but live together harmoniously. They eat whatever they usually ate in life, as StarClan supplies an infinite amount of food (I think) for the cats.
The Place Of No Stars, also known informally as the Dark Forest, is where bad cats go when they die. They are connected to cats who try to go there in dreams. Like StarClan, the Place Of No Stars is a place, not a clan (hence it's called the PLACE Of No Stars), but a whole lot harder for you to like. There, the cats feel no hunger, and therefore there is no food there.
The Tribe Of Rushing Water is a tribe of cats living in the Highstones (mountains) in a cave called the Cave Of Rushing Water. They eat woodland animals and probably fish (I'm saying probably because Google won't give me answers) .
The Tribe Of Endless Hunting is made up of the deceased cats from the Tribe Of Rushing Water. They give warnings and signs to the tribe's healer to show which cat is to be the next healer. It is like the StarClan of the Tribe Of Rushing Water. There, the cats eat woodland animals and probably fish (again, because Google won't give me answers) .
I do not know much about BloodClan, except the fact that it does not have a warrior code. It once had two members, Scourge and Bone. They live around a Twoleg den. This clan is considered evil. The main source of food for them is woodland animals.
The only other group of cats that I know of are more like a clan than BloodClan, and it doesn't even have a name. They have healers and guardians, almost exactly like the clans. They live in the basement of a Twoleg gathering place (I eventually found out that it was a church) . They eat scraps from scrap cans and sometimes prey.