As a buck, I don’t much understand what the big deal about birthdays is. The way I see it, every day spent on this earth is worth celebrating because it means I didn’t get eaten by a mountain lion or hit by a car while crossing the 405 freeway. But E+J have explained to me that for humans, celebrating yearly birthdays is an important tradition, and that’s why we generally find ourselves in the Sierra Nevada each July — to celebrate J’s birthday.