Animals Whose Teeth Never Stop Growing
By: EjazUlHaqBhat
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Rodents like mice and rats have four long, rootless incisors that grow continuously throughout their lives
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Rodents wear down their teeth by gnawing on objects like nuts, leaves, and bark
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Rabbits have open-rooted teeth, which means their teeth continue to grow throughout their lives
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Rabbits' teeth are constantly worn down and renewed by the act of chewing on hay and grass
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Elephants' tusks are actually their incisor teeth, which grow continuously throughout their lives
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Elephants also have molars that are replaced six times throughout their lives. Each molar can weigh up to five pounds
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Hippos have large incisors and canines that grow continuously to compensate for wear and tear from grazing on tough grasses
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Squirrels, like other rodents, have four front teeth that grow continuously throughout their lives
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