when in doubt google.
from livescience.com
Quote:
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As reported in the journal Nature this month, scientists have identified a protein that detects sour taste on the tongue. This is a rather important protein, for it enables us and other mammals to recognize spoiled or unripe food.
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maybe i was confusing bitter and sour. i must not be a super taster.
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At this rate, by Tuesday it will be Thursday; By Wednesday, it will be August and by Thursday, it will be the end of existence as we know it.
- Prof. Farnsworth.
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