Men with small dogs are more attractive to women.
Experts from the University of Jaen in Spain have revealed that females prefer the opposite sex to have a smaller pooch as it makes them seem less "intimidating and threatening".
In the study, the team collected data from almost 300 female college students who were shown pictures of a man or woman either walking alone or with a dog.
The results showed that the women felt more at ease with the people walking the small dogs.
A researcher said: "We selected two unpopular, medium and small-sized adult dogs (Portuguese podengo-like mixed-breed dog and wire-haired dachshund, respectively) to examine whether the positive dog effect was due to dog presence itself or dog specificity.
"The current study has shown that the small-sized dog prompts more positive emotional reactivity and higher levels of safety that the medium-sized dog in most emotional contexts, pointing out that emotional and safety benefits from dog presence might also be related to size."