reindeer – n. a large wild animal that has four long thin legs, brown fur, and antlers if male, that lives in northern parts of the world

plateau – n. a large flat area of land that is higher than other areas of land that surround it

calve(s) – n. the young of various other large animals, such as reindeer or whale

decompose – v. to cause something, such as dead plants and the bodies of dead animals, to be slowly destroyed and broken down by natural processes and chemicals