If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have evolved testicles of all different sizes. In almost all these separate cases, ...

Some scientific studies from brain research suggest that near death, there may be brief bursts of electrical activity in the ...

The same body can look very different depending on whether you approach it as a biologist, a doctor, or a mathematician.

Weight loss feeling harder than it should? Your body isn’t broken, but the old advice about how it spends energy might be ...

RICHMOND, Va. — What makes you happy? Is it the rich taste of chocolate, the serenity of a long walk on the beach or the rush of skateboarding? No matter what brings you joy, the impact of happiness ...

So the mathematician's answer is that humans have either seven or eight holes. In the end, the question is not just about ...

The Greenland shark can live up to 500 years. The kind of longevity that probably has something to do with its home: cold, ...

Things in Dr. Anthony Atala’s lab at Wake Forest University are not always what they seem. On one lab bench, surrounded by gutted printer cartridges, lie the inner workings of an inkjet printer. But ...

Editor's Note: This story was included as an excerpt in WBUR's weekly health newsletter, CommonHealth. If you like what you read and want it in your inbox, sign up here. There are some questions ...