Final answer:
The risk of hitting a deer increases at dusk because deer are more active during low light conditions at dawn and dusk, and decreased visibility makes it difficult for drivers to see and avoid them on the roads.
Step-by-step explanation:
At dusk, there is an increased danger of hitting a deer because this time is typically when deer are more active. Deer are crepuscular animals, meaning they are most active during the low-light periods at dawn and dusk. During these times, deer move around for feeding and mate-seeking, which can often lead them to traverse roads and highways. Additionally, the low-light condition at dusk makes it harder for drivers to see the deer, increasing the risk of collisions. Human visual acuity is decreased in low-light conditions, and headlights may not illuminate a deer until it's too close to avoid. This combination of high deer activity and reduced driver visibility spikes the probabilities of deer-related vehicle accidents.
At dusk, there is more danger of hitting a deer because this is when deer are most active and likely to be crossing roads. Deer are crepuscular animals, which means they are most active during the twilight hours of dawn and dusk. During these times, they search for food and may be more likely to venture onto roadways. Additionally, dusk is a time when visibility starts to decrease, making it harder to spot deer on the road.