Arizona scientists discovered the puppy cuteness peak

Jack Russel puppies , photo by Clevergrrl via Flicker

A study from the Arizona State University suggests that humans perceive pupies as most adorable when they’re eight weeks old. The research project was led by professor of psychology Clive Wynne.

According to his research, the peak coincides with the age at which puppies are usually taken away from their mother, making them more vulnerable. For the research, Wynne took photos of three different dog breeds at different stages in their development. A group of 51 people were asked to judge the photos of the dogs based on their cuteness.

In an interview to ScienceDaily, professor Wynne hypothesized that the study may be proof of how dogs rely on humans for their happiness and survival. The professor also states that he intends to study the cuteness peak further.