Why do bristlecone pines live so long?

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Tags

1. #conditions
2. #trees
3. #bristlecone
4. #below
5. #pines
6. #because
7. #cause
8. #soils
9. #harsh
10. #short
11. #growing
12. #creates
13. #these
14. #slowly
15. #actually
16. #environment
17. #elevations
18. #groves
19. #winds
20. #isolated
21. #seasons
22. #temperatures