Some will leave you doubled over in laughter, and some will make you scratch your head in wonder while others will scare your socks off. Teething is an important milestone in your baby’s development.

The tooth was later confirmed by scholars to be an upper third molar of the extinct woolly mammoth Rachel DeSantis is a senior writer on the music team at PEOPLE. She has been working at PEOPLE since ...

Chattering teeth – that rapid, sometimes noisy clack of your upper and lower teeth – is a minor, startling symptom that can feel embarrassing and confusing.