More than 84% of dogs show signs of fear or anxiety

A dog trembling during a thunderstorm or backing away from a stranger may seem like an isolated reaction—but new research suggests these moments are far from rare.

In fact, the majority of dogs may experience some level of fear or anxiety more often than their owners, according to a new study that analyzed behavior data from tens of thousands of pets across the United States.

“These are behaviors most owners have seen at some point,” says Bonnie Beaver, a professor of ...