Field observations have suggested that wolves and other wild animals may communicate telepathically over many miles, and surveys have shown that about 50% of dog owners and about 30% of cat owners believe that their pets may respond to their thoughts or silent commands. Among humans, apparent telepathy is most commonly reported between members of families and between close friends and colleagues. Experimental investigations of telepathy in animals and people suggest that telepathy may be a natural means of communication between members of animal and human groups. Human telepathy is still evolving in the context of modern technologies, including the internet, emails, SMS messages and telephones.