Dear colleagues, We are pleased to share our recent paper in Trends in Ecology & Evolution. Oestreich WK, Oliver RY, Chapman MS, Go MC, McKenna MF (2024). Listening to animal behavior to understand changing ecosystems. Trends in Ecology & Evolution. https://doi.org/10.1016/j.tree.2024.06.007 Abstract: Interpreting sound gives powerful insight into the health of ecosystems. Beyond detecting the presence of wildlife, bioacoustic signals can reveal their behavior. However, behavioral bioacoustic information is underused because identifying the function and context of animals’ sounds remains challenging. A growing acoustic toolbox is allowing researchers to begin decoding bioacoustic signals by linking individual and population-level sensing. Yet, studies integrating acoustic tools for behavioral insight across levels of biological organization remain scarce. We aim to catalyze the emerging field of behavioral bioacoustics by synthesizing recent successes and rising analytical, logistical, and ethical challenges. Because behavior typically represents animals’ first response to environmental change, we posit that behavioral bioacoustics will provide theoretical and applied insights into animals’ adaptations to global change. This paper is open access and available here: https://www.cell.com/trends/ecology-evolution/fulltext/S0169-5347%2824%29001... Best, Will Oestreich (woestreich@mbari.org <mailto:woestreich@mbari.org>) -- Will Oestreich Postdoctoral Fellow Monterey Bay Aquarium Research Institute Website <https://www.woestreich.com/home>