The happiest photos in the world Top10 happiest photos

Does this blissed-out, smiling and possibly sleeping dog remind us of rolling around in green fields? He certainly looks happy about it, and his grin triggered a mirror smile in over two thirds of people. Dogs and cats often rank highly in our favourite photo lists. This is probably due to a combination of familiarity with these animals as pets (and fond memories of family pets) and because they are creatures that are loyal and trusting of humans.