Add Yahoo as a preferred source to see more of our stories on Google. There's a good reason why so many people feel as attached to their pets as they do to their human children—over the course of ...

Whether you decide to actually meet your Perfect Match, go out with your significant other or stay in for a night of Netflix with friends, Valentine’s Day can be an opportunity to appreciate the bonds ...

Ever felt hopelessly bonded to your pooch when it stares at you lovingly? It turns out that man’s best friend may have hijacked a uniquely human bonding mechanism, ensuring that we love and care for ...

The human penis lost the sensitive ridges common to many animals more than 800,000 years ago in an evolutionary move that promoted longer sex and monogamy, U.S. researchers say. Men are missing a ...

We all have at least one friend that treats their dog like an actual human child. Scientists think you shouldn't be a hater: There’s 20,000 to 40,000 years of evolution causing them to behave that way ...