Yosemite's roads are used by both visitors and park wildlife. Please obey posted speed limits. Speeding kills bears & other wildlife! Use turnouts to pull completely out of the road to take photos, consult the park map, or simply enjoy the park's scenery and wildlife. Wear seatbelts and use child safety seats required for children under six years of age or under 60 pounds in weight. All motorcyclists must wear helmets.