Earlier quoted context omitted.
why not ? What's to say that mental computations can't come in discrete units ? Maybe communication about the past is a self-contained computation that can evolve independently in brain networks as diverse as those of bees, orangutans and humans
It's not impossible, just highly improbable given everything we know about population genetics and behavioral neuroscience. It seems their claim is based on a single behavior that was selected because they observed it during field study and found it interesting. They confirmed the behavior in their experiment; this itself would have been an interesting report. To make a Science paper out of it though, it needed to be…
Dogs like yours are undoubtedly conscious.