Life history research is a field of biology that focuses on the study of the entire life cycle of an organism, from birth or hatching to death. This research area seeks to understand how an organism's growth, development, reproduction, and survival strategies are shaped by its environment, genetics, and evolution. Life history traits such as age at maturity, reproductive strategy, lifespan, and growth rate are key components of this research area. By studying life histories, scientists can gain insights into the adaptive strategies of different species and how they have evolved to thrive in their particular environments.