  From cytoskeletal networks to tissues, many biological systems behave as
active materials. Their composition and stress-generation is affected by
chemical reaction networks. In such systems, the coupling between mechanics and
chemistry enables self-organization, for example, into waves. Recently,
contractile systems were shown to be able to spontaneously develop localized
spatial patterns. Here, we show that these localized patterns can present
intrinsic spatiotemporal dynamics, including oscillations and chaotic dynamics.
We discuss their physical origin and bifurcation structure.
