37. Butterfly’s eyes

Many creatures see the world differently from the way we do.

They have eyes best suited for their needs and their life styles.

We will investigate the sight lines and other special features of

animals, birds and insects here.

Like all the adult insects butterfly has compound eyes. It is made up of numerous separate eyes.

Each mini eye has its own mini lens! Dragon fly has 28,000 mini eyes in each of its compound eyes.

Some species of ants have only nine mini eyes is each compound eye. The other insects have varying

number of individual eyes in each compound eye.

The insects see the world and the objects as a mosaic of overlapping points of light. It may resemble

the picture on a badly tuned T.V.Set.

Compound eyes are unable to focus properly but they are very good in spotting any quick movement in any

direction of the insect. I hope this explains why it is nearly impossible to swat a fly, squash a

mosquito or kill any tiny insect.

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