Smiling, laughing, and crying are therefore crucial to interacting with the rest of the world. You probably won’t catch a baby laughing all by herself. “It’s a social response,” Mireault says.

One of the great joys of being a parent is finding random ways to make your baby laugh. If you haven't tried ripping paper yet, check out this compilation video, because apparently babies think ...

Babies typically start laughing between 3 to 4 months of age.This first laugh is often a response to something they find ...