Why Does Caffeine Exist?
Today, billions of people around the world start their day with caffeine. But how and why did the ability to produce this molecule independently evolve in multiple, distantly-related lineages of…
Earthquakes May Forge Large Gold Nuggets
Solid gold bars stacked in bank vaults, plating on the summer’s Olympic medals, or even your own pieces of gold jewelry could owe their existence to earthquakes. The stress and…