Controlled interventionist experimentation could help to move beyond the "wanderings through the scholastic maze" that traditional zoology had brought.
From zoology and ethology, we know that this behaviour is quite stereotyped and its variability is inscribed within known limits.
During this period he occupied himself with investigations relating to histology, comparative anatomy, general zoology and biology, and teratology.
A comparison with zoology and anthropology indicates that it is not necessary, and, in my view, it is not particularly desirable.
It was fossil zoology that interested him more than geology.
He was an all-round, classical scholar of zoology and could teach any aspect of the subject.
These are zoology, which has molecular zoology and ethology, and anthropology, which has physical anthropology and sociocultural anthropology.
By 1858 his health was so broken that he was forced to give up his nocturnal rambles and turn instead to marine zoology.
