All life is interconnected with all other life.

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The internal machinery of life, the chemistry of parts, is something beautiful.

The internal machinery of life, the chemistry of parts, is something beautiful. And it turns out that all life is interconnected with all other life. There is a part of chlorophyll, an important chemical in the oxygen processes in plants, that has a kind of square pattern; it is called a benzine ring. And far removed from the plants are animals like ourselves, and in our oxygen-containing systems, in the blood, the hemoglobin, there are the same interesting and peculiar square rings. There is iron in the center of them instead of magnesium, so they are not green but red, but they are the same rings.

by Richard Feynman (May 11, 1918 – February 15, 1988)
from The Meaning of It All: Thoughts of a Citizen-Scientist

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