Humans appear to be the only species clearly proven to shed tears specifically because of emotions. Elephants, primates, and dogs show behaviors and biological responses that come closest to human ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. While it may seem like pets can understand our emotions at times, ...

The semiaquatic reptiles seemed to be roused to action in a study when they heard recordings of crying human and ape infants. By Elizabeth Preston Some things need no translation. No matter what ...

Crying is one of the most recognizable human emotional signals. Tears appear when people experience grief, relief, joy, or deep stress. Because this response is so familiar, observers often assume ...