Watch your horses—you'd better be smiling when you throw a saddle on them next time. According to a story from Bustle.com and a British study published in the journal Current Biology, horses "can not only recognize expressions, but can also remember them and link them to a specific face. In other words, horses can recognize human faces and their emotional expressions, something that they then use to discern whether the person is a threat or not."

And this is not only true with their owners or people they know, but with any human. The horses used in the research were shown photographs of random people making happy or angry faces and then shown photos of the same people with neutral expressions.

Karen McComb, a professor at the University of Sussex, says, "What we're found is that horses can not only read human facial expressions, but they can also remember a person's previous emotional state when they meet them later that day — and, crucially, that they adapt their behavior accordingly."

(Hmm, this could be why people get thrown off certain horses)

And here's something I didn't know—horses look at threatening things with their left eye. Something I plan on adopting. Here's the story.