How does Gerald treat animals? Why is he so observant of nature? ch 3 and 4

Gerald dedicates his free time to learning about the natural history of Corfu. Until he is gifted a microscope by Dr. Stephanides, Gerald spends much of his time nose-to-nose with the insect world. Gerald acquires a range of different pets while on the island. Like his family, Gerald's pets have distinct personality traits and idiosyncrasies. Gerald is either allowed freedom or simply forgotten until his insects or animals cause some type of chaos. It is at these times Mrs. Durrell realizes her youngest son is in need of education and structure.