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

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

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

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

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

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

A map of groundwater depletion in 40 global hotspots runs far deeper than earlier estimates, and farm irrigation drives the ...

A new study found that gay men reported greater relationship insecurity than straight men, despite having similar dating ...

Modern wheat contains fewer minerals, and eating less while taking weight-loss drugs could make nutrient shortages more ...

Eleven of 26 Iron Age skulls from Matelica, Italy, show flat head syndrome, the earliest known cases in Italy, long before ...

A new study finds that invasive Burmese pythons in the Everglades can spread native and invasive plant seeds, adding to their ...

Reintroducing bison to Kansas prairies doubled native plant diversity over decades, helping grasslands recover from drought ...