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You've probably encountered images in your social media feeds that look like a cross between photographs and computer-generated graphics.

There's a lot to be said for an optimistic outlook, but a new study suggests that interpreting other people's emotions as more positive than they actually are could be a sign of brain aging and mental decline.

Some ant queens can produce offspring of more than one species - even when the other species is not known to exist in the nearby wild.

Tiny bones locked in stone for millions of years have finally told their sad story.

The levels of caffeine in your blood could affect the amount of body fat you carry, a factor that in turn could determine your risk of developing type 2 diabetes and cardiovascular diseases.

Plastics are now everywhere, with tiny fragments found in several major organs of the human body, including the placenta.

Most of us can hold our breath for between 30 and 90 seconds.

The pain of gout has been with us for millennia at least, but scientists have gone back much further in time - more than 20 million years - to bring back a gene that could help treat the condition and others like it.

If you're one of the 63 million Americans who went hiking last year, chances are you've found yourself needing to go, with no toilet in sight.

There's growing evidence that the mix of bacteria in the gut affects obesity risk, and new research backs up the thinking that 'good' bacteria transferred via fecal microbiota transplants (FMT) could help boost metabolic health across several years.