Each second 26,000 cups of coffee are consumed globally. That’s over 93 million cups an hour, or an astonishing 2 billion cups a day! Why is coffee the most popular beverage on Earth? Well it might have something to do with all that lovely caffeine it contains. We are a species thoroughly addicted to caffeine; the most popular psychoactive substance in the world. Recent research into the genomics of the coffee plant is shedding some light on the evolutionary processes behind the world’s most popular drug, and revealing some of the reasons it is popular not just with humans, but with insects, too.
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