The SPIDER is a Dominate genetic pattern mutation meaning that when bred to a normal, half the offspring will be Spiders and the rest are completely normal balls unlike Simple Recessive traits which produce normal appearing babies that are carriers of that mutations DNA. Their not Co-dominate because so far they haven't proven to have a Super form. Spiders are tan/golden brown in color with black/dark brown "spider-webbed" patterning, crazy head markings and posses piercing green eyes. Side patterning is reduced with high white and orange flecking that creeps up from their belly. These are a "must have" in your collection as they are truly unique and have/will make some of the most insane combos created!!