Sad eyes can mean a lot of things. Although it's possible that the dog is sad, behaviorists believe dogs developed that puppy dog look to mimic the same feelings we have when we look at human babies.

Age may seem like an obvious marker between puppyhood and a fully grown dog. However, many owners go on referring to their puppy as a dog even when it’s well into maturity as a term of ...

“Puppy-dog eyes didn’t just evolve for us, in domestic dogs,” says comparative anatomist Heather Smith. Her team’s work has thrown a 2019 finding that the muscles in dogs’ eyebrows ...

The adorable “puppy dog eyes” expression has long been associated with our canine companions. Researchers have thought the wide-eyed look evolved due to humans’ close bond with dogs and ...

Coyotes can do ‘puppy dog eyes’ too: comparing interspecific variation in Canis facial expression muscles. Royal Society Open Science, 2024; 11 (10) DOI: 10.1098/rsos.241046 ...

A new study debunks the idea that domestic dogs specifically evolved puppy dog eyes to tug on our heartstrings. When you purchase through links on our site, we may earn an affiliate commission.

Age may seem like an obvious marker between puppyhood and a fully grown dog. However, many owners go on referring to their puppy as a dog even when it’s well into maturity as a term of ...