patrol -- n. a group of people, vehicles, etc., that go through an area to make sure that it is safe : a group that patrols an area
mammal -- n. a type of animal that feeds milk to its young and that usually has hair or fur covering most of its skin
species – n. biology : a group of animals or plants that are similar and can produce young animals or plants : a group of related animals or plants that is smaller than a genus
plantation – n. a large area of land especially in a hot part of the world where crops (such as cotton) are grown
ecological – adj. relating to the relationships between a group of living things and their environment