poor georgie’s almanack: science in +/- 30 seconds.
Stem Cells.
Every tiny thing in our bodies exchanges information with other small things around it.
In a womb, a sperm and egg fuse into one entity with information from the mom and dad’s body.
That teensy new entity then looks for a contractor to build a baby, using the parents’ information (DNA) as a blueprint.
Nearby stem cells are like handy-men who can do various tasks and are pretty good at it. One is “hired” to start making a tooth, another an eye, etc.
Sometimes they interpret the blueprint differently.
Washington National’s star pitcher, Max Scherzer, for example got one blue eye and one brown eye.
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