Mack Snow
Gene
Mack Snow is a well-known snow morph of the leopard gecko, Eublepharis macularius, associated with reduced yellow pigment and a cooler black-and-white appearance at hatching. As adults, many Mack Snows develop some yellow, but they often remain paler than normal wild type geckos. The trait is commonly treated as incomplete dominant: one copy produces the Mack Snow look, while two copies produce the Super Snow form with a much whiter body and bold black spotting.
Care is the same as for other leopard geckos, but breeding plans need more precision than casual color labels suggest. Pairing two Mack Snows can produce Super Snows, and crossing snow lines with albino, eclipse, or tangerine projects can make visual identification harder. Breeders should track parentage and hatchling outcomes rather than relying only on adult color. Buyers choosing a Mack Snow should expect a healthy terrestrial gecko first and a cooler, cleaner color expression second.
