Fentanyl and other synthetic opioids are still the single biggest driver of overdose deaths in the US. They were involved in ...

Observations from the James Webb Space Telescope now provide the first direct confirmation that water clouds beyond our solar ...

When people lose weight, their fat cells don’t usually disappear. They shrink. Think of them as tiny balloons. As the body ...

Drones spotted up to 100 young, endangered hammerhead sharks gathering in a single sighting near popular Australian beaches.

They may not be true spiders, but these ancient marine arthropods are stranger than anything crawling across land.

The story of the exquisite Roman helmet is still shrouded in mystery. Perhaps the high-status man who served in the Roman ...

Some small breeds live nearly twice as long as their much larger cousins. It’s one of the great paradoxes of the animal ...

A moon lost in interstellar darkness may still be able to hold on to liquid water, no star required. A modeling study ...

Thirty minutes on an exercise bike sounds like a better cardiovascular workout than thirty minutes sitting in a hot bath. But ...

Now, conservationists have pulled off a remarkable rescue. According to a new study, a breeding and reintroduction effort ...

The first Americans, seen here eying mammoths at an ancient lake, descend from the Ancient North Siberians and a group of ...

Gentoo penguins were secretly hiding four distinct species among them, and nobody knew about it until their DNA spilled the ...