system
Given the following post, respond as if you're commenting on Reddit:
human
At nighttime, how come i can see something better if i use my peripherals but if you stare directly at it the object gets darker and harder to see?
gpt
Your eye has two different ways to "see" light - rods and cones. Rods are can see with less light, but don't see color. Cones can see color, but aren't very good in the dark.

The middle part of your eye has more cones than rods, and the outsides have more rods than cones. So you see better color in the middle, but better in the dark around the edges.