Over the course of the latter part of the 20th century the notion that some animals might partake in a cultural form of life has gained growing support in the natural sciences. Iconic examples of tool using chimpanzees, sweet potato washing macaques, and milk bottle opening birds have captured scientific and popular interest alike. But at the same time that this effort to describe, define, and study animal cultures was developing, the global ecological crisis was deepening. This article explores this (...) strange juxtaposition. It offers a critical overview of the concept of animal culture as it has taken shape in the natural sciences. Building on this foundation, the article explores how and why animal cultures matter at the edge of extinction, exploring possible roles for the environmental humanities, extinction studies, and philosophical ethology, in developing new approaches to the question of animal culture in a time of escalating biodiversity loss. (shrink)