Question

why owl can see only in night not in day????

Answer 1

Owls have good night vision for a few reasons. First, they have a lot more rods and not as many cones, so they lose color vision, but see a lot better at night. Also their eyes are very large, so they pick up a lot of light rays. Owls have a sort of mirror at the back of their eye called the tapetum lucidum.

Answer 2

Beacause they have light sensitive cells called rods which allow them to see even in dark black night.