Dog faces can be incredibly cute — here’s how and why

From The Washington Post:

When its owner arrives home, a dog may seem to smile. When a dog wants to go for a walk, it may lift an eyebrow and look pathetic. These adorable expressions have helped create a “deep, long-standing bond between humans and dogs,” says Anne Burrows, a professor of physical therapy at Duquesne University in Pittsburgh, Pennsylvania. They also make dogs unique when compared with species such as wolves or cats.

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