![San Francisco Zoo on Twitter: "The Little Puffer is turning 115 years old! To celebrate its 115 years, we will be handing out complimentary engineer hats each day of this #MemorialDayWeekend (Saturday - San Francisco Zoo on Twitter: "The Little Puffer is turning 115 years old! To celebrate its 115 years, we will be handing out complimentary engineer hats each day of this #MemorialDayWeekend (Saturday -](https://pbs.twimg.com/media/Dd-iy5YV4AESbSl.jpg)
San Francisco Zoo on Twitter: "The Little Puffer is turning 115 years old! To celebrate its 115 years, we will be handing out complimentary engineer hats each day of this #MemorialDayWeekend (Saturday -
![The Best Train Rides and Railroad Adventures for Families in Northern California and the Bay Area | Marin Mommies The Best Train Rides and Railroad Adventures for Families in Northern California and the Bay Area | Marin Mommies](https://www.marinmommies.com/sites/default/files/styles/full-width_column_827/public/stories/little-puffer-2021.jpg?itok=qBXMsfF3)
The Best Train Rides and Railroad Adventures for Families in Northern California and the Bay Area | Marin Mommies
![San Francisco Zoo on Twitter: "You now have the opportunity to bid on a private Little Puffer experience! Your family (or chosen group of up to 10 people) will have a private San Francisco Zoo on Twitter: "You now have the opportunity to bid on a private Little Puffer experience! Your family (or chosen group of up to 10 people) will have a private](https://pbs.twimg.com/media/EpPtV2KU0AEaMzC.jpg:large)