Over the last roughly 20 years, legal personhood has been extended to rivers, glaciers, mountain ranges and whole ecosystems in order to protect natural entities and prevent their degradation by means of human activities. Several authors approaching the topic from a legal-theoretical perspective, especially arguing from a perspective of analytical jurisprudence, have been critical of such developments based on conceptual reasons. During this Maastricht Foundations of Law Colloquia, Lukasz Dziedzic will talk about his paper, in which he critically maps the debate and demonstrates that given the conceptual flexibility of legal personhood the essential debates are rather not located at the legal-conceptual level but in assessing the normative reasons for why legal personhood ought to be extended to natural entities. Legal personhood is flexible enough to accommodate humans, natural entities and hybrids and serves as a point of reference in the legal system to attribute rights and/or obligations.