half completed before I became

He wrote in a later publication: “My observations were more than half completed before I became aware that the surprising phenomenon of the spontaneous revolutions of the stems and tendrils of climbing plants had been long ago observed.” Darwin was no ordinary naturalist. He saw that, though circumnutation was not a new observation, scientists lacked any kind of understanding about how it happened or what the plant was actually doing with this movement. He wanted to delve deeper. The tendrils might be “crafty and sagacious,” but just how crafty and sagacious they were—that was the fascinating question. สล็อตเว็บตรง