Scrapes mark territory and tell other males to keep out. A deer gulps down its food without chewing. Later, after acids in its stomach break up leaves, stems, and other large items, the deer throws the food back up its throat and chews it. Like a cow, the deer chews its cud. By eating this way, a deer can gobble up a lot of food quickly, then go to a safer place to chew it.
Fur coats help deer survive cold weather.
Hollow brown hairs trap air and act like the insulation in your winter jacket. A thick layer of underfur adds extra warmth. Snow, wind, and water cannot penetrate these hairs to the skin, so deer stay warm and dry. Some whitetails are much larger than that. The biggest one ever recorded in the United States was a 500-pound Minnesota buck.