The XO Directory

A clam that was discovered by researchers from icy Arctic waters is now considered as the world's longest-lived animal at 405 years old.

Climate researchers at Bangor University in the United Kingdom recently counted 405 annual growth rings in the shells of a quahog clam.

When this animal was young, Shakespeare was writing his greatest plays and the English were establishing their first settlements in the Americas.

The team plucked the mollusk from 262-feet-deep (80-meter-deep) waters off the northern coast of Iceland.

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