The format sees the best players eligible to represent New Zealand at an international level play for the respective island on which they played their junior hockey.
It is assumed that the four other island forms were introduced to their respective islands just a few centuries ago, probably by humans.
In the distant past the major islands of these archipelagos were all colonised by Regulus species, which evolved on their respective islands isolated from mainland populations.
The game began with the Celebrity and the Pleb castaways banished to their respective islands by Maldivian officials.
Bailiffs and Deputy Bailiffs in modern times have also invariably been qualified as advocates in their respective islands.
After four days of cyclone, the two tribes return to their respective islands to witness nature's destruction.
This variation appeared to be adaptively related to the seed size available on the respective islands (big beaks for big seeds, small beaks for small seeds).
During Quaternary ice age cold periods, when the ocean levels were up to 120 m lower, both Asia and Australia were joined with their respective islands.
After they were finished buying goods, the tribes got on their marine vessels and traveled to their respective islands.
Both the Flinders and King island subspecies are found across their respective islands, but prefer more forested habitats there.