This was the 35th most engaging Tweet from zoo and aquarium twitter accounts on July 10, 2019.
🚂Allllllllllll aboard! Did you know that the Little Puffer is one of only three remaining 22-inch gauge engines lef… https://t.co/UjJUC7PxJi— San Francisco Zoo (@sfzoo) July 10, 2019
Within its first day, this tweet received
and reached a potential