From his initial observations in 1860 of Drosera rotundifolia, the common sundew, Darwin developed a series of experiments ultimately establishing how "excellently adapted" these plants are to catching insects (p. 3).
经过1860年对圆叶茅膏菜（Drosera rotundifolia）的初步观察，达尔文制定了一系列的实验，基部确定了这些植物是如何“较好的适应”捕捉昆虫的。