Many mammals, NOUN, fishes, NOUN, and other animals VERB from one place to another at certain times of the year. This movement is called VERB . SAME VERB is part of the ADJECTIVE cycle of these NOUN.
Animals VERB for different reasons. Many VERB to VERB or to find NOUN. Some animals VERB to PLACE where they can hibernate, or VERB for the winter. Others VERB because the NOUN is too ADJECTIVE , too cold, too ADJECTIVE , or too dry during certain times of the year.