Cerriens are feline-based creatures, with two large eyes set vertically on the face, and ear tufts. Most cerriens' tails are thin, with an pointed tip. Although, some, such as Feather, have tufted tips instead. Cerriens in Glaciterria have thicker fur on their tails to keep themselves warm in the cold climates. 

Some cerriens have horns on top of their heads and/or spikes along their backs that glow in the dark alongside their eyes. Any horns or spikes' glowing features can be activated on and off, but the eyes can't. The only time the eyes would stop glowing in the dark is if the cerrien is dead. 

They each have three toes on each paw, with a fourth almost opposable "thumb." Each paw has four retractable claws, and some cerriens are even born with webbed feet. 

Cerriens of all tribes can have a variety of patterns, such as spotted, striped, brindled, solid, or pointed. Some rarer patterns are more common in certain tribes than others. For example, a cerrien with rosettes (large spots similar to what leopards have) is most commonly found in Glaciterria - with a pattern and color combination most comparable to a snow leopard. 

Some cerriens can be born with special physical abilities. For example, the cerrien Inferno and his father Volcano each can generate their own body heat in the parts of the body containing orange fur. This can be helpful during winter. They also grow brighter during times of extreme excitement, anger or fear, and grow dim during times of sadness. 

Weight: 10-25 lbs. (4.5-11.3 kg.). 

Height (at the shoulder): 10 in. (0.2 m.) 

Length: about 18in. (0.4 m.) long. (The tail can vary greatly in its length.)

Speed: Around 35 miles per hour

Life Span: 25-30 years

Date of hatching-1 year: a kitten

1-3 years: juvenile

3-6 years: Young adult

6-29 years: adult

29-35 years: senior

Eyesight: They see all colors that humans see, with exceptionally good vision. In the dark they have night vision.

Hearing: Very good hearing, with desert cerriens able to hear mice tunneling underground

Smell: Can identify scents of individual cerriens and their groups

Taste: They, unlike a regular domestic cat, can taste sweets.

Tail up - happy

Tail up and head bowed - respectful greeting to a cerrien of higher authority

Lashing tail - angry, frustrated, irritated

Tail-tip twitching - anxious or excited

Tail curled over back - amused

Twitching tail-tip - impatient

Tail held down - relaxed

Tail curled around paws when sitting - relaxed

Tail curled around another cerrien - affection, protectiveness

Fur bristling - angry, frightened

Touching noses with another cerrien - casual friendly greeting

Rubbing muzzle against another cerrien's cheek - affection

Lick on the cheek or back - closer affection

Lick on the ear - general friendliness, comfort

Alliance Forest is a forest in-between Moorest and Thermoterria, consisting of both regular deciduous trees and everthermo trees. It is a shared territory that the two tribes each use to gather medicine or food in times of hardship or when supply is low in either tribe's territory. It is also used as a symbol to represent the unity between the two tribes. 

The Spirit World is where all cerriens go when they die. It exists as an ever-expanding parallel universe to Fintaria - The Living World. It has the same geography and landmarks, but on a much larger scale. Cerriens that died of old age are young again, and cerriens who died very young are still able to grow up, but stop aging once they've reached adulthood (3 years). Eggs that died before hatching are taken to a hatchery in the Spirit World and usually adopted by another ghost.

Adult ghosts are given magic upon entering the Spirit World. This magic is used to generate tools to aid a cerrien, such as ways to tell time or communicate quickly with others. Kittens in the Spirit World don't receive magic until they are 3 years old. However, using this magic requires energy and can tire a ghost out if they use it excessively. 

The Spirit World is basically a larger clone of Fintaria in a parallel universe. Scorpoterria and Glaciterria have cemeteries, but Moorest and Thermoterria don't and bury their dead in any place in the territory that might be significant (such as a favorite spot of the dead cerrien). A copy of each grave in the Spirit World hosts a portal connecting to the Living World version of the grave, so that the spirit can go to and from the Living World. A portal is created when a dead cerrien is buried and/or given a funeral.

While the ghosts can visit the Living World in death, they are invisible to all the living inhabitants of Fintaria (unless a Spirit-Watcher is present). Like using magic, going to and from the Spirit World takes energy, and a ghost has a maximum time of 24 hours in the Living World before they have to return to the Spirit World to rest and regain their energy. 

Every century, a single cerrien (could be from any tribe, including Maliterria) is born with the ability to see and communicate with the ghosts - known as the Spirit-Watcher. This cerrien is sacred by all, and treated with the highest of respect. A spirit-Watcher is recognizable by a cerrien wearing a light pink cone hat, with the letters s and w written down the front. The very first Spirit-Watcher was Fin, whom the continent of Fintaria was named after. 

Three leaders that all make decisions together, elected by the public

The Court of Advisors: six cerriens that advise and help the leaders make decisions, elected by the leaders

If the leaders can't come to a final decision, they usually either consult the advisors or hold a vote for the public to decide. 

If a leader dies, they are replaced by a member of the Court of Advisors (voted by the public)

Other roles in the tribe include:

Medics

Military

Police Force

Teachers

Hatchery Workers

Monarchy - King/Queen/Monarch

The oldest child of the monarch will take over the throne after they die. If they have no children, they will choose a successor among their own Court of Advisors

Other roles in the tribe include:

Medics

Royal Guard - Act as both police and military

Teachers

Hatchery workers

Royal chefs

Royal servants

(Their government is very similar to Moorest because they are most related and the youngest group.)

Three leaders: all make decisions together, elected by the public

The Council of Advisors: six cerriens that advise and help the leaders make decisions, elected by the leaders

If the leaders can't come to a final decision, they usually either consult the advisors or hold a vote for the public to decide. 

If a leader dies, they are replaced by a member of the Court of Advisors (voted by the public)

Other roles in Thermoterria include:

Medics

Military 

Ground Guards

Tree Guards

Builders

Teachers

Hatchery Workers

Two Leaders: Usually partners or close friends that are elected by the public

Two Deputies: Next in line to become leader, advise the leaders in decision-making

Every five years, a vote is held to determine if one or both leaders should step down and be replaced by one of the deputies. The leaders and deputies are expected to closely bond with each other during their work in the event of one leader stepping down and leaving one of the deputies to become the new leader, since the two have to work together. If a deputy steps up as leader, an election is held to decide the new deputy

If the leaders can't agree on a decision, they consult the deputies or have the public vote. 

Other roles in the tribe include:

Medics

Military

Teachers

Hatching-Cave Workers

In almost all groups, cerriens have their own private dens and will live alone or with a family member. While it is not common in other groups for cerriens to live alone, it is standard in Scorpoterria for two or three cerriens (siblings, friends, or partners) to live in a den together and share a nest (a sandy dip in the ground) to keep each other warm during the chilling cold of the desert at night. 

A partner for a cerrien is a little different than what humans percieve it as. In Fintaria, a partner is a title referring to a companion that the cerrien shares a very deep, emotional bond with - one chosen cerrien that has a unique bond with another. There are two types of cerrien partnerships: pink and yellow. 

Similarly, the word "crush" refers to anyone a cerrien has the desire to be partners with. Partners are separated into two categories: pink-crush and yellow-crush. 

"Pink attraction" is used to describe the human definition of traditional romantic partnerships, with physical attraction, a fondness/admiration for the other cerrien, and a deeply intimate, emotional bond. Its symbol is the pink flower, as it represents the human concept of romance. 

"Yellow attraction" can be used to describe a platonic soulmate, but it can include aspects of "human romance." This often includes living together, sharing a nest, and displaying physical acts of affection, such as a lick on the cheek. These kinds of relationships usually develop from very close, pre-existing friendship. Many cerriens consider their yellow-partner their best friend, but not all best friends are yellow-partners. A yellow-partnership includes a strong, emotional bond, emphasizing compansionship and platonic love. Yellow attraction's symbol is the yellow flower, meaning strong friendship and companionship. 

Sometimes crushes can include both colors. However, they would still usually lean more towards one or the other. A cerrien is capable of having both a yellow and pink partner at the same time, but this can lead to conflict depending on the specific nature of both partnerships. 

A cerrien asks another to be a partner by giving them the flower of the appropriate color (pink or yellow). If the cerrien accepts, they take the flower. The partnership is considered official when the asked cerrien presents a flower back, representing mutual affection. 

Some tribes have more specific customs for asking. In Glaciterria, cerriens only ask in the spring, as that is the time for new beginnings. Scorpoterrians usually ask and receive back in an oasis. This is due to the bigger presence of life in the middle of the dry desert. It signifies that the relationship will survive even in the darkest moments. An oasis is also considered a location of good luck for the future.

If two cerriens become partners, sometimes one or both make matching bracelets. These bracelets are made of colorful stones that stick together and are known for being particularly difficult to get apart, symbolizing the bond between partners. The color choice of these bracelets is completely up to the partners. It is typical that the bracelets are given by one cerrien as a gift, but sometimes the cerriens will make bracelets for each other. This custom is most common in Scorpoterria and Glaciterria, as up north is the most common place to find these stones. 

When both partners die, a ceremony is held and the two cerriens become ever-partners, a ceremony represetative of the fact that they can now be together for all eternity. The ceremony is a celebration for both the lives of the two cerriens and their relationship. 

Only pink-partnerships involve having kittens. A cerrien egg is laid at the Hatchery (or in Glaciterria's case, the Hatching-Cave) where one parent stays with it until it hatches. The newly-hatched cerrien will then move to their parent's den.

Once a kitten has reached two months of age, they are old enough to start attending classes of history and cerrien culture. They also learn basic math and how to read and write. In Scorpoterria, this is where their battle training begins. 

At six months, their education extends to hunting and fighting, and perhaps another skill they are interested in such as medicine (although medic trainees aren't considered full medics until they have four years of experience). They also learn tribe-specific skills such as climbing rocks in Glaciterria or hunting in trees in Thermoterria. Glaciterrian parents assign a specific teacher to train their kitten, as Glaciterrians believe that the personal bond between teacher and student is incredibly important in a young cerrien's education and life. As a result, many Glaciterrians pay close attention to a kitten's growth if they wish to become that kitten's teacher. 

At one year, the young cerrien will move out of their parents' den, and start sharing a den with their siblings. This is when most cerriens stop attending school. However, Glaciterrian cerriens still receive teachings and advice from the teacher they were assigned. If the cerrien is an only-child, they may choose to move in with a friend. At two years, they are fit to find their own dens. 

Cerriens usually hunt alone, but also hunt with friends, siblings, or anyone they are relatively close to. However, Glaciterrian cerriens are not permitted to hunt solo due to the possible dangers of slipping off tall cliffs or getting attacked by flying predators such as birds of prey or even dragons. 

Moorestians: ambush prey on the ground or in trees, leap up to catch birds, fish, chase rabbits on the moor

Scorpoterrians: Hide behind rocks to ambush mice and birds, work in groups to scare prey from burrows into another cerrien's paws, lift up rocks to find insects, steal snake eggs

Thermoterrians: Often hunt in trees, ambush mice on the ground, can chase squirrels from branch to branch, leap to catch birds

Glaciterrians: hide in snow or behind rocks to ambush small mammals, chase hares, leap to catch birds, work in groups to catch larger prey like hawks. 

Cerriens in Moorest and Thermoterria recognize the four seasons, however there isn't an official day each season starts. Instead, each season starts according to patterns in the weather and climate: winter starts during the first snowfall, spring starts once the snow melts completely, summer starts once the temperatures rise higher, and autumn starts once the leaves have completely changed color and the temperature gets cooler. But for them, the year starts in the spring, the season of new beginnings. 

The start of each season is a celebration for Moorest, although spring is definitely the largest. Winter and Autumn especially signifies resilience and the endurance of the tribe to keep going. 

Thermoterria starts hibernating the day of the first snowfall. The start of winter is significant to them, but not considered a celebration. 

Scorpoterria has two seasons - the dry season and the wet season. The dry season starts the new year. The first rainfall of the wet season is a celebration for the kingdom, and activities such as parties, gift-giving, and feasts take place. 

Glaciterria celebrates the warm season, when the temperature rises and the heavy snow melts. This is also the start of the new year for them. 

There are a few known powers in Fintaria:

Spirit-Watcher - a cerrien born every century with the ability to see and communicate with the spirits that come from the Living World

Time-Traveler - any cerrien capable of going into or seeing the past or future, which can be done in a few ways:

Spirit Transport: the act of a cerrien's spirit being sent to the past or future, while the living body remains in the present, using this power requires a lot of energy and usually tires a cerrien out after they've finished using it

Dream Foresight: having dreams of what will happen in the future, could be dreams of the near or distant future

Sensing Future Emotions: being able to "sense" or "feel" what will happen in the future (Ex: feelimg a sense of dread before a foreboding event takes place), could be in the near or distant future

Mind-Wanderer: a cerrien capable of entering into another cerrien's mind and communicatimg with that host through thoughts, able to read that cerrien's mind