Otter at a local zoo is going viral after showing zookeepers her favorite marble collection. At a local zoo, staff noticed one otter had a habit that was different from the rest. Otters are known for using rocks to crack open shellfish, and some even keep their favorite stones because they work better than others. But this otter wasn’t saving rocks. She was saving marbles. Zookeepers first noticed her hiding one shiny marble in the corner of her enclosure. Then another appeared. Then another. Soon, staff realized she wasn’t just collecting them by accident. She was carefully keeping each one like it meant something. The zookeepers thought it was so sweet that one by one, staff members started bringing her a different marble as a gift. Every time she received one, she would take it gently, inspect it, and add it to her little collection. Now, whenever certain keepers visit, she gathers the marbles together as if she’s showing them off. Visitors say it looks like she knows exactly which marble came from which person.