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.

In February 1878, the first telephone book was published in New Haven, Connecticut. The book was one page long and had fifty names in it.

The oldest living animal ever found was a 405 year-old clam, named Ming by researchers.

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