This memoir investigates the formative professional experiences of a young zoologist navigating the operational realities and animal interactions at the pioneering Whipsnade Zoo. Gerald Durrell draws upon his personal history as a student keeper in 1945 to document the daily challenges of managing an open-range animal exhibit. Through a series of anecdotal accounts, he explores the intersection of human labor and animal behavior, emphasizing the necessity of empathy in professional wildlife care.

The text provides an accessible and lighthearted look at the early career of a renowned naturalist, focusing on the human-animal bond within a structured zoo environment. Its anecdotal style and focus on individual animal personalities make it a classic entry in the genre of nature writing.