Fortunately for the breeding industry, it is possible for adult ryuu-nekos to reproduce regardless of size. Hobby and professional breeders specialize in creating pure-bred ryuu-nekos, in addition to exotic cross-breeds and elusive black or white color tufts. Although occasionally something truly unique will break out of the eggshell, most ryuu-nekos are various combinations of the primary types listed below. They are capable of completing a full reproductive cycle annually, yielding a clutch of one to five eggs. Wild ryuu-nekos seem disposed to breed within their subtypes, which makes crossbreeds in nature exceedingly rare. Their breeding cycles also extend as their size increases, with the largest adults rarely if ever breeding. Life expectancy is tied to a ryuu-neko's size as well. The domesticated pets generally live for fifteen years, whereas full sized natural specimens can live to be nearly one hundred.