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Roughly 200 million axons
Darwin wrote “I think” followed by the sketch
red blood cell
hypertension
caffeine necklace | silver product_circular DNA Roughly 200 million axonsCaffeine necklace sterling silver Caffeine evolved separately in coffee, tea, cacao, guarana, and yerba mate on different continents, with no shared ancestor producing it. The same alkaloid structure arrived independently in at least three plant lineages. This is one of the clearest examples of convergent molecular evolution in nature. The Science Behind Caffeine Caffeine (1,3,7 trimethylxanthine) acts as a natural pesticide: it inhibits germination
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