Question

Why night birds have more number of rod cells?

Answer 1

For this reason night birds that need to locate things in darkness have more number of rod cells. Because they are nocturnal, meaning that they hunt at night, they need more rod cells. night birds have less cones than rods because cones sense bright light but these birds need rods to sense dim light in the night.

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Answer 2

Answer:

Explanation:

night birds have less no of cones than rods in their eyes because cones are responsible for vision at high light level where as rods are responsible for vision at low light level

hence as it is dark rods will be more than cones so they they can have clear vision at night