Cephalization is the evolutionary trend where nervous tissue and sensory organs become concentrated at one end of an organism's body, typically the head. This adaptation allows for more efficient processing of sensory information and coordination of movement, enhancing an organism's ability to interact with its environment. In many animals, such as vertebrates and arthropods, cephalization is associated with the development of a brain and complex sensory structures. This centralization of functions supports more advanced behaviors, including hunting, navigation, and social interactions, contributing to the success of these species in diverse habitats.