Go you, it's your birthday, you're older, and that is a pretty crummy realization. Every trip around the sun and every time we celebrate with friends or alone with a bottle of whiskey, the truth is that we are just running out of time.
Running out of time to make our mark, change the world just a little bit. So challenge yourself this birthday. Do something for another, but simply out of a desire to do good. Try to make your birthday as altruistic as it is a day to celebrate your being here for one more trip.
You can start out by looking here at some more Happy Birthday Memes with animals.