Reactions to On the Origin of Species which all forms of evolutionism were identified with Darwinism. For a description of Darwin's life, work and influences in the following period see the article: Darwin from Orchids to Variation. Note: this article uses Desmond and Moore, "Darwin", as a general reference. Other references used for specific points or quotations. Reactions to On the Origin of Species The immediate reactions to "On the Origin of Species", the book in which Charles Darwin described evolution by natural selection, included international debate, though the heat of controversy was less than that over earlier works such as "Vestiges of Creation". Darwin monitored the
On the Origin of Species on slaves than others, and he observed that many ant species will collect and store the pupae of other species as food. He thought it reasonable that species with an extreme dependency on slave workers had evolved in incremental steps. He suggested that bees that make hexagonal cells evolved in steps from bees that made round cells, under pressure from natural selection to economise wax. Darwin concluded: Finally, it may not be a logical deduction, but to my imagination it is far more satisfactory to look at such instincts as the young cuckoo ejecting its foster-brothers, —ants making slaves, —the