The regulation of temperature and humidity reduce the risk of pest infestations ensuring that the collections will be protected and preserved for many years to come. The exposed thermal mass of the continuous sprayed reinforced concrete shell maintains a stable internal environment, and minimizes energy loading.

Public access to the scientific core of the second phase of the Darwin Centre takes the form of a visitor route up and through the cocoon, overlooking the science and collection areas. Visitors can experience the Darwin Centre as a compelling and interactive learning space, observing the scientific and research activities without interrupting scientific work in progress.