In the beginning, ALL Life is Identical. Before that seed-enhanced-Egg begins that sub-division process that ultimately results in a birth, It is a Life form that contains the ability to sub-divide and contains a "database" of "infinite diversity, in infinite combinations". As It divides and grows, It draws from this "database" to Grow to BE any form, whether that form is flora, fauna or "extraterrestrial". In whatever shape and/or color, it is the same thing: LIFE! A sort of "Grand Unified Theory of LIFE", if you will.