Patrick Reese, general manager of CoComelon, stands near a shelf of toys at production company Moonbug's offices in Los Angeles. (Marcus Ubungen / Los Angeles Times) Fifty-five years ago, preschoolers ...

Add Yahoo as a preferred source to see more of our stories on Google. As babies progress to toddlers to preschoolers, they also learn how to make friends and become good friends. They encounter new ...

Two small children jump into a bubble bath with expressions of dazed, perpetual pleasure. The taller one has hair like molded chocolate, the other’s is like a yellow ice-cream swirl. Everything—the ...

Fifty-five years ago, preschoolers were captivated by the TV performance of a fuzzy blue monster, two striped shirt-wearing best friends and a big yellow bird. Today, in the now-crowded field of ...