Mule deer are known as browsers. From late spring to early fall, mule deer gain weight and build fat reserves by feeding heavily on broad-leafed plants and grasses. During the winter and early spring, when there is little forage available, their diet is mostly leaves, stems and buds.
Rating Newest Oldest. Best Answer: A chemical change in the muscles after a body's death causes Rigor Mortis. ATP (energy) will stop being made. The body is unable to complete its ATP formation cycle so they create muscular contractions. This causes the limbs to become stiff and difficult to manipulate.
Rigor Mortis, a stiffening of the muscles, usually starts to take place at around 3 hours after someone is dead with full rigor occurring at about 12 hours after death.