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New research links serotonin and dopamine not just to addiction and depression, but to the ability to control genes.
The ingredients for reactions ancestral to metabolism could have formed very easily in the primordial soup, new work suggests.
Cosmic rays may have given right-handed genetic helixes an evolutionary edge at the beginning of life’s history.
Mitochondria are most famous as sources of metabolic energy. But by splitting and combining, they can also release chemical signals to regulate cell activities, including the generation of neurons.
Bioluminescent organisms have evolved dozens of times over the course of life’s history. Recent studies are narrowing in on the complicated biochemistry needed to illuminate the dark.