Are elephants smart?

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Tags

1. #science
2. #smart
3. #abilities
4. #intelligence
5. #scientists
6. #published
7. #level
8. #article
9. #dolphins
10. #cetaceans
11. #believed
12. #states
13. #problem
14. #elephants
15. #equal
16. #terms
17. #solving
18. #elephant
19. #chimps