Emotions

Changes in the facial expressions of mice can be hard for the human observer to make out, so researchers used machine learning.

Even when everything's going great in your relationship, deep down you likely harbor some ambivalence toward your partner. Psychology research suggests it's not just OK, but normal.

These four-legged friends are far more intelligent than you might think.

Can dogs experience happiness, sadness and even guilt?

In a Stanford experiment, children wore the glasses for at least 20 minutes three times a week.

It wasn't clear if social media played a role in the epidemic of loneliness in America.

Fido may really know when you're having a bad day.

Our gut feelings may be more rational than we think.

Researchers observed more than 2,500 embraces at an airport's departures and arrivals areas for their data.

"So is animal sentience a big deal? Yes, it is."

The effect is similar to eating highly processed foods, an expert explains.

Your stress affects other people, and vice versa—even if you're a doctor.

Embedding sustainable ideals into everyday life is fraught with difficulties.

Bees are smart—don't underestimate them.

In certain types of online communication, it's stranger to use a period than not.

Will there ever be a robot psychiatrist? Not for the foreseeable future.

A condition called "emotional blindness" causes people with autism to ignore their emotions when making a decision.

The strange emotional truths contained in Pixar's latest film.

Tech company Thync have released a device which they claim can calm you down or pump you up.