Masculinized features help define children with autism, online autism-parent forums spread pseudoscience, and the United States has more older fathers than ever.

Children with autism are genetically more similar to one another than to a group of unaffected siblings.

People with autism aren’t easily surprised, the social camouflage some girls and women with autism use may preclude diagnosis, and autism-related genes are rooted deep in human ancestry.

Girls with autism may have more difficulty making and executing plans, and taking care of themselves, than do boys with the condition.

A movement to ban valproate during pregnancy gains a foothold in France, people with auditory hallucinations seek to demedicalize the experience, and adults on the spectrum speak out.

Where do we stand in our understanding of autism genetics — and what major questions remain? A molecular biologist supplies answers in stanzas.

The evidence linking autism and maternal infections grows, special neuron recipes are in development, a CRISPR pioneer envisions unicorns, and 23andMe delivers empathy data.

A woman who smokes while pregnant may increase autism risk in her daughter’s children.

Girls with autism may not get a diagnosis because certain features of the condition look different in them than they do in boys.

Autism traits may become more apparent as girls reach adolescence but stay stable in boys.