In the biology cluster we address how biological organisms perceive and produce sounds. Currently, all of our work is focused on animals (including humans) though acoustics also play a role in plants and fungi. While hearing and vocalizing is very common in the animal kingdom, how animals interpret what they hear and what kind of sounds they produce can vary greatly. There are many factors that can influence this variation including differences in cognition, acoustic environments, communication needs, physiology, and the level of sociality in a given species. The goal in our cluster is to assess how these factors work together to promote the wide-ranging acoustic behaviours we find across the animal kingdom.