Dogs can see in the dark better than humans but not as well as cats. Dogs have more rod cells in their eyes and a reflective layer called the tapetum lucidum that enhances their night vision. However, dogs need some ambient light to see and cannot see in total darkness like cats, who have even more rods and a superior tapetum lucidum adapted for nearly complete darkness. Key differences:
- Dogs have better night vision than humans due to more rods and the tapetum lucidum.
- Cats have even more rods and a more effective tapetum lucidum, allowing them to see in almost total darkness.
- Dogs require at least some light, while cats can navigate very dim or near-total darkness.
Thus, dogs see well in low light but do not have as strong night vision as cats do.
