What is biodiversity? What organisms are part of the Garden’s ecosystem? What role do they play in the botanical network? What relationships exist between the inhabitants of our collections? What is pollination? Who visits the flowers and why? What imbalances affect nature? We will answer all these questions by investigating the animal world hidden in the Garden and observing the interactions between animals and plants. We will discuss their role in the ecosystem. We will reflect on the conservation of the environment and the role of humans in its destruction.