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1. It's an many to posing existential species threat .


2. Ocean decay to teeth acidification causing sharks' is .


3. It in scientific is community the well known .


4. Research teeth shark whether are at risk similar .


5. The damage teeth visible predators show apex of .


6. Analyzed 10 reef 42 from blacktip sharks teeth .


7. They tanks the two placed in teeth separate .


8. Water other the more acidic tank in was .


9. Ongoing sharks damage impact could how feed .


10. Such damage potentially domino effects could trigger .