In ancient Mexico, the Aztecs believed that dogs could see ghosts and guide their masters’ souls through the underworld. That argument could extend to dogs’ ability to sense ghosts, as well. Maybe we just don’t have the tools to accurately measure what dogs sense? Image: DepositPhotos / Minko ChernevThe sensory explanationSometimes, however, the reasons dogs and cats seem to be seeing ghosts might be rather mundane. Why belief in dogs’ psychic abilities persistsIf natural explanations exist, why do so many people believe dogs can see ghosts?