Milan, complex and multiform city, like all urban settlements, was born and raised to satisfy needs of the human being, damming and manipulating the non anthropocentric world inside itself, unconsciously affecting its future and life quality. In the urban space, between buildings and roads, nature still finds its way spontaneously but remains confined or ignored by the citizen, who’s often not even aware of the biodiversity the city can hide. The fact is that, for a city, its biological value depends on its variety that must not grow spontaneously wherever there’s a slight opportunity. It is and should constitute an important aspect for the city environment’s richness not only because of all the benefits it provides wherever it is, but also because it has the right to occupy its original intended space. A space that we need to give back.Letting a place for nature implies getting away from our human way of thinking and concentrate on the need for a natural dimension that men have lost. As Jacques Derrida says in his book “L’animal que donc je suis”, we are all animal living on the same common ground, and as all the other animals we perceive the city in a practical way and we establish a relationship with it depending on our needs. We are inevitably tied to the natural world and in a sense, we cannot help it. We can’t help but to appreciate and loving its perfection and completeness which we also need to know ourselves. What is not to be forgotten is: nature in itself does not need humans. Mankind instead, does need nature, which can sustain itself only by using the given space. In order to preserve it, men need to take a step back and understand it first.Through history, mankind has neglected that condition and focused too much on the product of their actions, trying to keep everything under control. Using this violent approach, however, they suffocate the wealth that the world has in itself, like its biodiversity. It’s necessary for the man to resize himself and re-direction his attention to a natural aspect through a change of perspective that considers distance and respect. The intention behind this project is to enlarge the biodiversity possibilities and embed it in the city allowing it to occupy the space. Through the connection and interaction with the city, the place becomes both a communication route and a habitable place for the animal. In addition, a special interest is incorporated: a learning process in which, in order to be in contact with nature, you must first respect it keeping a distance and change your point of view in order to understand space and life how an animal would.