Alan Yu

It wasn’t until a few years ago that researchers defined what really counts, to animals, as play.

These families have access to care, but getting appointments can be harder than it is for civilians, Children’s Hospital of Philadelphia research says.

It’s a tough question: Why do we look different? As one high school’s syllabus puts it, race is “both a biological myth and a social reality.”

The FDA recently approved a procedure to ease the trembling caused by Parkinson’s that doesn’t involve invasive surgery and cutting into a patient’s head.

A new report says Philadelphia will do quite well compared to other places in the U.S. as more work gets automated.

Fifty years ago, NASA had to design and build everything for the Apollo mission. Now, it will place an order with a private Pennsylvania company for a lunar lander.

Short answer: money

TV and movies represent everything that’s wrong about physical education. Some teachers are working to change that.

Tens of thousands of industry leaders came to the city this week for BIO, an international convention. Local boosters pitched Philly’s advantages.

Federica Bianco says colleagues from both careers are surprised at her alternate identity, but each role enhances the other.

A startup says many bikers don’t wear helmets because they don’t like the style or the inconvenience.

In the United States last year, phishing victims lost more than $48 million. Microsoft says this is an increasingly common type of email scam.