The unknown, by definition, holds the value of the potential knowledge that can be revealed from it. From this prospective, a living species looses its value on

The unknown, by definition, holds the value of the potential knowledge that can be revealed from it. From this prospective, a living species looses its value only in the moment when we know everything (whatever that means) about it. For now, we're nowhere near that level even for the simple unicellular life like bacterial species.