It is always interesting to find studies like these.
It seems that we are increasingly keen to understand how humans act and how we interact with our family, our friends, strangers and even our animals.
We stumbled upon an interesting article on Yahoo News , which says that scientists at the University of Oregon have found that "kindness" could be caused by certain genetic traits and that those traits are recognizable to outsiders at a glance.
"Our findings suggest even slight genetic variation may have tangible impact on people's behavior, and that these behavioral differences are quickly noticed by others," said lead author Aleksandr Kogan, a postdoctoral fellow at the University of Toronto.
The study observed a group of people who had different types of genes (G, AA, AG, GG) in the rs53576 DNA sequence of oxytocin receptor gene (OXTR). This is interesting as oxytocin is sometimes called the “love hormone” as it promotes closer links with other people and other social behaviours.