Dogs are common pet animals found all over the world. They have better eye vision than the humans. The eyes of the dogs have various adaptations that will help them to see in the night. The pupil of the dogs is wider than the humans and this enables dim light vision in dogs. Further, the fovea region of the dogs has a number of light sensitive cells (rods) than the cones.
With these adaptations, the dog has the capacity to see the surroundings during night. Than complete darkness, dogs can see the surrounding objects effectively in dim light. The night vision in dogs have various advantages; one important advantage is, they safeguard the houses of the owners.