Normal Leopard Geckos or Wild Type Leopard Geckos are generally a dull yellow color with a large amount of black spots on them. The tail will be white with black spots on it. Before all of the colorful morphs came about, Normals and High Yellows were the only morphs available. 
No history yet
As babies the head is often a light brown/tan with little spots. There are often white markings right behind the head. As adults the head turns to a yellow or gray with many larger spots. Often the head will appear as blue or a different color above where the eyes are, especially as babies.
The body is often yellow and gray banding with many, large spots. However, through selective breeding Normal Leopard Geckos often have a base color of yellow with fewer, smaller spots.
The tail has a base yellow color sometimes with gray perpendicular banding. The entire tail has spots on it similar to the body. Now, the typical Normal Leopard Gecko has a white tail with gray banding and sometimes orange at the tail tip.
The Leopard Gecko ( Eublepharis macularius ) as taxonomists currently recognize it, consists of five subspecies found in Afghanistan, Pakistan, Western India (Rajasthan, Ajmer, Madar foothills), Iraq and Iran. They are:
Additionally, four closely related species are currently recognized. At least one of these was formerly included in the E. macularius complex and has undoubtedly contributed it’s unique genetic make-up to the mix currently kept in captivity as well. They are:
What does all this mean? Well, it means that today’s pet Leopard Geckos are subject to an enormous amount of natural variation. In addition, several true genetic traits have been uncovered. These, combined with the natural variation, have led to the ‘naming’ of innumerable morphs. Many are nothing more than natural variation, and will not breed true when crossed to others with differing appearances. Others are a bit more complex and breed true, but with variation. 
Line bred traits like tangerine originally were bred from normal leopard geckos. These morphs are no longer known as normal due to their very different colors and patterns that occurred through line breeding.
No known related traits.