A barn owl’s ability to hunt by hearing alone relies on exquisite variations in the structure of its feathers.

The steroid-friendly sports experiment failed to deliver the revolution it sold.

A new study reveals that if left unchecked, unaccounted-for emissions of ozone-harming substances could delay the layer’s full recovery by almost a decade.

You might know to steer clear of green potatoes and rhubarb leaves. That’s because they produce toxins that can make humans sick.

Argus defies traditional robotics by being guided exclusively by mathematical symmetry rather than biological design.

June brings planetary alignments, meteors, the Milky Way in full view and summer’s first full moon.

Wildfire smoke does more than hurt your lungs. New study suggests it may also raise risk of violence.

Scientists drill off Cape Cod and uncover vast undersea aquifers that may reshape our water future.

The ideal number of humans on Earth is around 2.5 billion and a major study explains what that means for our future.

Decoded journals show Stephen Hawking’s father worried his son lacked initiative and ambition.

These ancient fish lineages survived mass extinctions, ice ages, and evolutionary upheaval.