The Chao Life-Cycle

Chao go through several stages in their lives, as illustrated in the image above and detailed below:

  1. Egg. All Chao begin their lives in eggs. This stage usually lasts just a few minutes, and ends when the Chao hatches.
  2. Child. After hatching from their eggs, Chao are considered to be children. This stage usually lasts one Chao year or three to five hours. Throughout this stage the Chao undergoes a gradual transformation, where its shape and colour changes depending on its interaction with fruit and animals. This stage ends with a metamorphosis in a blue-green cocoon (or a white cocoon or PS3/360); this is called the first evolution.
  3. Adult. The Chao is an adult after emerging from its first evolution cocoon. This stage usually lasts four Chao years or twelve to twenty hours. Similar to the child stage, an adult Chao undergoes a gradual transformation, where its shape and colour changes depending on its interaction with animals; this is called second evolution. This stage ends with a second cocoon as the Chao dies.
  4. Death. Depending on how happy the Chao had become by the point of its death, it will either enter a white cocoon or a pink cocoon. A pink cocoon indicates that the Chao has enjoyed life and is reincarnating; after a Chao reincarnates, an egg will be left so that it can enjoy life another time. A white cocoon indicates that the Chao is dying forever; no egg will be left, and this is the end of its life cycle. On PS3 and Xbox 360, cocoons are always white and do not indicate what will happen.