GREEN, MEAN, AND UNSEEN

Beavers’ teeth never stop growing. Woodwork is mandatory.

✓ TRUE FACT
Beaver incisors grow continuously (often millimeters per week) and are kept in check by gnawing. Their orange color comes from iron-rich enamel that makes the front surface extra durable.

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Beavers’ teeth never stop growing. Woodwork is mandatory. | SmartAss Facts