This weekend, we shellebrated Grandma's 136th trip around the sun. We don't know the exact date of her hatching, but it was sometime in 1884 and she's been at the Zoo since 1928. Here's to 136 more! 🥳 #HappyBirthdayGrandma #AgeIsJustANumber #SanDiegoZoo 📷 wildlife care specialist Danielle