Five kingdoms For most of history, the limited powers of our unaided senses left humans blissfully unaware of the micro-organisms all around us. But the development of optical instruments gradually lifted the veil from that hidden world, so that human ideas about life had to be constantly revised.
長久來，人類受限於感官，對生活在同一時空的微生物茫然不覺，隨著光學儀器的進步，潛伏生活周遭的微生物世界逐漸被揭開面紗，人類對生命的認知也不斷修正。