Crawling, the first word, the first steps — these are just a few of the key milestones in early childhood development that parents eagerly await as their child grows up. However, there are other ...

In early childhood, growth charts are used to monitor the height, weight and head circumference, serving as a screening tool to identify physical development. During this window of time, between early ...

This piece is part of Scientific American's column The Science of Parenting. For more, go here. One study of children with achondroplasia found that 100 percent of them commando crawled when they ...