So basically what I didn't tell you is that about 500 million years ago, organisms starter making materials, It took them about 50 million years to learn how to perfect how to make that abalone shell.
まだ言っていませんでしたが ５億年前 原始的な生命体が物質を作り始めましたが 上達まで５千万年かかりました アワビの貝殻の作り方を