You can tell the age of a whale by looking at the wax plug in its ear. This plug in the ear has a pattern of layers when cut lengthwise that scientists can count to estimate the age of the whale.

People whose mouth has a narrow roof are more likely to snore. This is because they have less oxygen going through their nose.

If current trends continue, Medicare costs will absorb 51% of all income tax revenues by 2042.

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