Many animals have superior night vision compared to humans, though this doesn’t necessarily mean better color vision in darkness. Animals have different adaptations for low-light conditions:
- Cats and dogs have a reflective layer called tapetum lucidum that enhances night vision
- Owls have extremely large eyes with many rod cells for enhanced light sensitivity
- Deep-sea creatures often have specialized adaptations for detecting bioluminescence
Most animals, including humans, rely primarily on rod cells for night vision, which don’t distinguish colors well. This is why we all see mostly in grayscale in very low light conditions. However, some nocturnal animals have evolved to have much more sensitive rod cells or larger eyes to gather more light, allowing them to see better in dim conditions.