how does it apply to humans?
Darwin argued that the differences between the human mind and the minds of the higher animals were a matter of degree rather than of kind;  he viewed morality as a natural outgrowth of instincts that were beneficial to animals living in social groups
History of evolutionary thought
In 1871, Darwin published "The Descent of Man, and Selection in Relation to Sex", which contained his views on human evolution. Darwin argued that the differences between the human mind and the minds of the higher animals were a matter of degree rather than of kind. For example, he viewed morality as a natural outgrowth of instincts that were beneficial to animals living in social groups. He argued that all the differences between humans and apes were explained by a combination of the selective pressures that came from our ancestors moving from the trees to the plains, and sexual selection. The debate over human origins, and over the degree of human uniqueness continued well into the 20th century.
which of the following was not knowledge or an observation that help form the theory of evolution UNANSWERABLE what is history of evolutionary thought? The recognition that species change over time and the perceived understanding of how such processes work, has roots in antiquity—in the ideas of the ancient Greeks, Romans, and Chinese as well as in medieval Islamic science
wiki:14286833
History of evolutionary thought [SEP] Application to humans
However, a series of archaeological discoveries in the 1840s and 1850s showed stone tools associated with the remains of extinct animals. By the early 1860s, as summarized in Charles Lyell's 1863 book "Geological Evidences of the Antiquity of Man", it had become widely accepted that humans had existed during a prehistoric period—which stretched many thousands of years before the start of written history. This view of human history was more compatible with an evolutionary origin for humanity than was the older view. On the other hand, at that time there was no fossil evidence to demonstrate human evolution. The only human fossils found before the discovery of Java Man in the 1890s were either of anatomically modern humans or of Neanderthals that were too close, especially in the critical characteristic of cranial capacity, to modern humans for them to be convincing intermediates between humans and other primates.