A group of researchers trained a group of 11 dogs to differentiate between angry and happy human faces. During the study, ...

Dogs recognize smiling faces 00:33. Potty training dogs has a lot to do with raising your voice and pointing fingers. But maybe a smile or a frown is the way to go.

You know the look. After all, the Angry Face, according to a recent study, is pretty much the same all over the world. "The expression is cross-culturally universal," the study's lead author ...

Dogs Can Tell Whether You’re Making a Happy or Mad Face For the first time, science shows that a non-human animal can recognize the emotional state of another species . Rachel Nuwer.

PHILADELPHIA (CBS) – Have some tough negotiations coming up? You might want to start practicing your angry face. According to new research from Stony Brook University, Harvard University and ...

If you see someone with a furrowed brow, pursed lips and flared nostrils, it's easy to tell they're angry. In fact, humans evolved a universally recognizable angry face not only to warn others of ...