Evolutionary adaptation is a field of study within biology that focuses on how organisms have evolved over time to better suit their environment. This can involve changes in physical characteristics, behavior, or other traits that increase an organism's chance of survival and reproduction in a particular environment. Evolutionary adaptation is a key concept in understanding how different species have evolved and diversified over millions of years. Researchers in this field study the genetic mechanisms and selection pressures that drive these adaptations, and how they contribute to the diversity and complexity of life on Earth.