What happens during the newborn, infant and toddler stage? Does your baby enter toddlerhood even if they're not toddling? If you're getting confused with the myriad of references to your baby, you're ...

At this stage, known as gastrulation, a flat and featureless sheet of cells folds into a living blueprint for the body, a ...

At age 10, your child should be full of energy, love to play, and might start showing the first signs of puberty, too. (Photo Credit: E+ / Getty Images) As your child grows, every year seems ...