We used to think that newborn smiles were just gas, and didn't mean anything. But surprisingly, babies start giving those precious gummy grins while they're still in utero. Baby expert think those smiles are practice for the real ones they give when they're a little older and have been out in the world long enough to become sociable.
If that's REALLY the case, they haven't met this little girl. Every time she sees her family members or hears their voices, she flashes the most delightful grin. And when she looks at her daddy, her eyes light up. The doctor said it best: In the 35 years he'd been practicing, he'd NEVER seen anything like this.
The video's a bit over three minutes, but goes by in a flash--just like that newborn stage. Watch!
Then check out the other amazing things that happen in utero by clicking through the gallery of ultrasound images below.
via I Heart Radio