Science: The Secret of Life

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Where did you come from, baby dear?

Out of the everywhere into the here.

Where did you get those eyes so blue?

Out of the sky as I came through.

—George MacDonald

The origin of baby dear, and the reasons for "eyes so blue" are the concern of genetics, the comparatively young, fast-developing science of heredity that is trying to solve the mystery of life, as physics works at solving the mystery of matter. Genetics has already accounted scientifically for blue eyes (even in a strictly dark-eyed family). It is working toward an explanation...

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