adaptationor
Adaptationor is a term used in evolutionary biology to describe a trait that has evolved through natural selection and increases an organism's fitness in a particular environment. These adaptations can be physical, behavioral, or physiological. For instance, the thick fur of a polar bear is a physical adaptation that helps it survive in extremely cold climates. The migratory behavior of birds is a behavioral adaptation that allows them to find food and suitable breeding grounds. Physiological adaptations might include the ability of some desert animals to survive long periods without water.
The process of adaptation is driven by variation within a population. Individuals with traits that are better