A re-analysis of data yields an increased estimate for the genetic contribution to autism, how the environment might contribute to autism is hard to pin down, and students on the spectrum describe the benefits of using technology at school.

Children who have an older sister with autism are more likely to also have the condition than those who have an older brother on the spectrum.

Sex education in schools needs to be adapted for teens on the spectrum so they can approach relationships in a way that is safe, confident and healthy.

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.