Tuberculosis transmitted from animals to humans is a growing concern in poor countries. As we observe World Tuberculosis Day, it's worth asking why.

Taking the placenta as a case study, researchers are able to piece together how new organs evolve, by repurposing old tissues and using them to do new jobs.

Astronomers are surprised by what they're finding out about galaxies that formed in the early days of our universe, now that sensitive telescopes allow direct observation, not the inference of old.

The Treaty of Rome, which eventually led to the European Union, is turning 60 at a time when many inside and outside Europe are questioning the union's value. For the U.S., much is at stake.

A 'witch hunt' is what Trump called investigations into his campaign and Russian interference in the 2016 election. An anthropologist explains the connection between witch hunts and social control.

Twenty years ago, the paranoia that consumed cults like Heaven's Gate existed on the margins of American society. Now it's moved toward the center of the nation's political life.

New Zealand's Whanganui River and the Ganga and Yamuna Rivers in India have been given the right to 'sue' over issues like pollution. The challenge now is to ensure these legal rights are enforced.

Even when a response goes to plan, lessons can be learnt.

A new fossil study challenges 130 years of thinking about how dinosaurs evolved.

Eight studies have found that when people were shown ID-style photos of people they'd never met, they were often able to correctly select the person's first name.

If you make science entertaining then people are prepared to pay attention.