Every dog owner has experienced it: that empty feeling that sets in when your beloved pooch won’t acknowledge you on FaceTime. But don’t fret, they aren’t mad at you for abandoning them. National Geographic reveals that a phone’s small screen makes it difficult for dogs to recreate a human image in their minds and, without your scent, an image alone may not be enough to warrant a tail-wag. A larger screen and a bright, positive voice may help, but it largely depends on the dog. As for cats, well, they just might not miss you.