The origins of the pug are traced back to ancient China, where they were originally bred as companion dogs for Tibetan monks. Over time, they were brought to Europe and further developed into the breed we know today.
The idea that pugs were bred with pigs likely stems from their distinctive flat face and wrinkly skin. However, these features are due to selective breeding for specific traits, not interspecies breeding.
It's important to remember that crossbreeding between different species is generally not possible due to genetic incompatibility.