A team of cognitive scientists has demonstrated for the first time that dogs can differentiate between happy and angry human faces. Dogs may have developed this skill due to their close ...

Psychologists used to think that people had to feel the negative emotion, and then get rid of it; this research suggests that, if people are prepared, it's actually a much faster and deeper process.

For the first time ever, researchers have established that dogs can tell the difference between angry and happy human faces. Dogs may have developed the skill during their domestication by humans ...

New research states emojis often mask negative emotions 02:27. PHILADELPHIA (CBS) -- We use emojis all the time in text messages or emails. A smiley face, a face laughing with tears or a sad face ...