PBS Eons

Wake up, friends, its National Coffee Day! ☕️ 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 flowering plants, again and again? Check out our episode, "Why Does Caffeine Exist?" to learn more about coffee's perky molecule!

1 month ago | [YT] | 386