Are octopuses really smart?

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Tags

1. #octopuses
2. #growing
3. #among
4. #coleoidea
5. #though
6. #thought
7. #advanced
8. #squid
9. #evolution
10. #interest
11. #example
12. #important
13. #nautilus
14. #intelligence
15. #animals
16. #cognitive
17. #subclass
18. #subject
19. #intelligent
20. #particular
21. #zoologists
22. #cuttlefish
23. #invertebrates