For many people, the best start to the day is a nice, fresh cup of joe. Now, researchers reporting in the Cell Press journal Current Biology on October 15 find that honey bees find caffeinated beverages--er, nectar--irresistible too.
In fact, it appears that bees may select caffeinated nectar over an uncaffeinated but otherwise equal-quality alternative. As a result, the researchers say, plants may be lacing their nectar with caffeine as a way to pass off cheaper goods.