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.
Research has shown that rigor mortis usually begins to set in approximately 3 to 4 hours after the death and reaches the maximum stiffness within 12 hours. The body becomes s â¦ tiff due to chemical changes in the muscles causing stiffness.