"Downsizing" from the fossil record: Ages and metallicities of red galaxies and their dependence on mass and on environment

Red-sequence galaxies are known to obey well-defined scaling relations, such as the Fundamental Plane and the colour-magnitude relation, yet their star formation histories, which in part drive these relations, remain poorly understood. In this contribution, we summarize recent results from the NOAO Fundamental Plane Survey (NFPS). These results appear in more detail in Smith et al. (2006) and Nelan et al. (2005).