Uncategorized
-
PaleontologyCatching evolution in the act
Paleontologists have unearthed fossils that provide direct evidence of something scientists had long suspected: The tiny bones in the middle ears of modern-day mammals evolved from bones located at the rear of their reptilian ancestors' jaws.
By Sid Perkins -
Health & MedicinePreemies respond to immunizations
Babies born prematurely rev up an immune response to two routine childhood vaccines as well as babies who are born full-term.
By Nathan Seppa -
Novel DNA changes linked to autism
Genetic alterations that occur in children without being inherited from the parents contribute to certain cases of autism and related developmental disorders.
By Bruce Bower -
Mental fallout among recent-war veterans
Almost one in three veterans of military operations in Afghanistan and Iraq receiving medical care at Veterans Affairs facilities displays mental disorders or less-severe problems that still require mental-health treatment.