All humans cry. Some of our tears are meant ... The work is published in the journal Evolution and Human Behavior. The paper ...

But these feelings-driven tears may not be a wholly human experience. Dogs can also cry happy tears, according to a study published today (August 22) in Current Biology. Although the animals’ eyes don ...

What Is the Origin of the Phrase 'Crocodile Tears'? Can Crocodiles Actually Cry? Yes, crocodiles can indeed "cry"—or secret what can be considered tears—when they are out of water long enough ...