Children with autism typically experience developmental delays, but not every child with a developmental delay has autism. Other factors, such as problems with hearing or vision, can also cause or ...
Dr. Paul Lipkin specializes in Neurodevelopmental Disabilities and Developmental and Behavioral Pediatrics at the Kennedy Krieger Institute in Baltimore, where he directs medical outpatient services.
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 ...