Quick Take Most animal tears serve physical purposes such as lubricating the eye and removing debris rather than expressing ...

In the movie Hoppers, scientists “hop” human consciousness into animal-like robots to talk to other species. We asked the ...

We like to draw a line between humans and animals, a clear divide built on memory, empathy, and invention. But that line doesn’t always hold. Apes steal territory. Parrots ace memory tests. Bees react ...