Centralized on Guam, I primarily use our incomparable reef access to reveal the acclimation dynamics of endosymbiotic dinoflagellate (Symbiodiniaceae). This naturally leads into topics on functional and morphological plasticity, specifically focusing on Cnidaria. Additionally, in an attempt to facilitate a more accessible scientific community, I use open-access tools and publicly available databases to answer broad questions in cnidarian ecology and evolution.