The main diagnostic test for obesity — the body mass index — accounts for only height and weight, leaving out a slew of factors that influence body fat and health.

The tracks suggest humans arrived in North America thousands of years earlier than was thought

There’s no reason kids should have all the fun.

A mermaid would need marine creature features to hear and produce sounds

Removing the thymus is associated with higher rates of death and cancer, a new study finds

Scientists want to know who will benefit most, what the long-term effects might be and whether the treatments will change views on obesity.

The proposed geologic epoch denotes when humans began profoundly changing the planet

The programs ID skin conditions, warn of dangerous driving and translate sign language

Mothers modify their signature whistles when their babies are near

All-natural treatment helped plants grow faster in soils polluted with plastic

Astronaut brains need time to recover before they can adapt to microgravity again

The Varroa mites are a leading cause of death for U.S. and European honeybees

A connectome is a map of nerve-cell connections in the brain

Brewer’s yeast proteins turned up in several works by two of Denmark’s most famous artists

Students shared nearly $9 million in prizes at this annual international competition

Teen’s color-changing device tests glucose in sweat to signal when insulin is needed

In tests, the hot-air machines spread far more microbes than paper towels

It marks a shift to long-term measures to handle the coronavirus