For most animals, eyes are most important source of information about the world in biological sense
The simplest eyes?clusters of light-sensitive cells?appeared more than one billion years ago
Eyes provided a big survival advantage to the first creatures that had them
Animals have evolved an amazing variety of eyes, along with often surprising ways to use them

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Width : 9.13 inch
Height : 0.39 inch
Length : 11.02 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 14.88 ounce (View shipping rates and policies)

ASIN : 0547959079