If you started your day with a cup of coffee, kept it going with a cup of cola, or ended it with a glass of wine, you are part of a long human tradition of spicing up your life with intoxicating substances. As a species, we have been getting drunk and stoned for a very long time. But, like so many other things, it turns out we aren't all that unique in this way. Animals were getting blitzed long before we were. Oné Pagán is a professor of biology at West Chester University in Pennsylvania. His new book is called "Drunk Flies and Stoned Dolphins."

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