A protein in brown fat answers to the body clock, cold and dietary fat, and mice lacking it burned less fuel, a new study ...

Teens who spend more time online report more mental health symptoms, but a twin study suggests screen time may not be the ...

Stars once thought to provide evidence of hypernovae may instead owe their unusual chemistry to ordinary supernovae that ...

New research reveals how the forever chemical PFOS disrupts a key immune protein, allowing flu and other viruses to multiply ...

When Pangea's tropical forests died 252 million years ago, Earth stayed in a hothouse for five million years. New fossil maps ...

Senescent cells in mouse lung and skin share a fat-linked signal a laser can detect, a step toward finding them without a ...

Gut bacteria may have accompanied humans for thousands of years, but many species are missing from industrialized populations ...

A study of 77 Chinese cities reveals how decades of high-rise construction have reduced winter sunlight across older ...

Traces of lead could make Herculaneum scrolls readable by X-ray, and a handheld scanner can pick out which ones carry it.

Fossil teeth reveal that T. rex maintained a body temperature similar to humans, offering new clues about dinosaur metabolism ...

A humpback whale repeatedly touched and stayed beside her dead newborn, raising new questions about maternal attachment and ...

Psychopathy is not one simple personality type. Different traits were linked with different patterns of language.