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 ...

Emotional tears are a uniquely human behavior. Research suggests they evolved not for eye health but as a powerful social ...

Scientists studying 1,300 golden retrievers have uncovered genetic clues explaining why some dogs are more anxious, energetic, or aggressive than others. Remarkably, several of the same genes linked ...

We like to think we have animals figured out: Owls prowl at night, squirrels scamper by day, and bears sleep through winter. But it turns out wildlife isn't following our rule book, and a new global ...