What is the periodic movement of groups of animals from one region to another for feeding or breeding called?

The periodic movement of groups of animals from one region to another for feeding or breeding is defined as migration. This behavior is commonly observed in many species, such as birds, fish, and mammals, as they travel to exploit seasonal resources or improve their chances for reproduction. Migration allows animals to escape harsh environmental conditions, find more abundant food sources, or reach suitable breeding grounds.

For instance, many bird species will migrate thousands of miles between their breeding grounds in the north and wintering areas in the south, taking advantage of optimal weather and food availability. This adaptation is crucial for survival and reproductive success. Other options, such as interaction, habitat, and population, do not specifically describe this cyclical movement and instead refer to different ecological concepts: interaction relates to how species relate to and affect one another, habitat refers to the natural environment in which an organism lives, and population describes a group of individuals of the same species in a particular area.