to John's web site
It is interesting to contemplate an
entangled bank clothed with many plants of many kinds, with birds
singing on the bushes, with various insects flitting about and with worms
crawling through the damp earth, and to reflect that these elaborately
constructed forms, so different from each other, and dependent on each
other in so complex a manner, have all been produced by laws acting around
Origin of Species, John Murray, 1859, concluding paragraph.