Kamino was in a system of 13 planets orbiting an aging star south of the Rishi Maze, a dwarf satellite galaxy in a decaying orbit in a loose sector of unnamed grouping of stars between the Rishi Maze and the main galaxy. The stormy waterworld of Kamino was located in Wild Space region beyond the Outer Rim. It was the fifth of the thirteen planets in the system. The planet orbited an aging star called Kamino and had three moons that orbited the planet itself, including Korasa. The planet was composed of a molten core with a rocky mantle and silicate rock crust. Climatic change had long ago submerged the planet's continents, drowning the planet under a global ocean that covered almost all of the surface, with a few islands left that were once mountains. These mountain-tips though, were rained on almost incessantly. However, the surface of Kamino was not always subject to constant rain, as such was in a Separatist attack to gain a DNA sample of Jango Fett. Its savage storms and powerful lightning bursts could be seen vaguely through its relatively thick atmosphere.
Being somewhat secluded from the rest of the galaxy, little is known about the origin of the Kaminoans (possibly a cloning experiment by unknown individuals from off-world gone bad). There were many peculiarities about the particulars of Kaminoan physiology: their digitigrade stance, once adapted for firm seabeds, eventually only saw use in the hallways of their science facilities, while only male Kaminoans exhibited fin ridges along the rear of their small, bulbous skulls. The almond-shaped eyes were able to see color only in the ultraviolet spectrum. Therefore, what appeared as white dwellings were actually colored with shades that Humans and other humanoid species couldn't see.
Kaminoans rode flying cetaceans called aiwhas. Indigenous to the planet Naboo, these aiwhas were probably created using cloning technology.
Around 19,000 BBY, dramatic climate shifts began to melt the extensive glaciers of Kamino. As a result of resourceful adaptation, the Kaminoans survived the Great Flood of their planet's continents. The Kaminoans used cloning to keep themselves sustained.