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
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