More people feel a deep bond with pets, sometimes stronger than with humans. Research and cultural trends explain why this occurs and where the line is drawn.

Animals don't betray you, talk behind your back, or change their mind about how they feel. The consistency of an animal's ...

Dogs have a special chemistry with humans that goes back many tens of thousands of years. Researchers investigated this special evolutionary relationship from a number of different angles. Their ...

Why does your dog rush to "help" when you are searching for something, while your cat seems… eh, less concerned? New research suggests that this difference may stem from deep evolutionary roots—and ...

Some people appreciate relationships with pets to combat loneliness – but others simply prefer dogs’ company. Catherine Falls Commercial/Moment via Getty ...