Acclimatization's the process of an organism adjusting to chronic change in its environment, often involving temperature, moisture, food, often relating to seasonal climate changes. (In laboratory conditions, this process's controlled to one variable change only and's termed acclimation). Acclimatization usually occurs in a short time, and within one organism's lifetime (compare adaptation). This may be a discrete occurrence or may instead represent part of a periodic cycle, such as a mammal she… (More on Acclimatization)