Russia’s Vladimir Putin brought a large dog with him to a round of negotiations with Germany’s Angela Merkel (knowing that she had a pathological fear of dogs,in order to gain a psychological edge).
A Labrador Retriever service dog pulled his disabled owner into the recovery position after he was struck unconscious, then covered him with a blanket. Retrieved his mobile phone and pushed it against his face, and only left his owner to fetch help once he had regained consciousness.
A dog named Gabi fought a jaguar, preventing the big cat’s escape from the Belgrade Zoo onto the streets of Belgrade.
There is a blind dog that has its own seeing-eye dog.
Baboons will sometimes ‘kidnap’ feral dog pups to raise as pets and keep for protection, eventually forming a symbiotic relationship.
There was a dog who obtained over one million delta airline miles in his life and had his own frequent flier card.
Using a basic food-reward system, normal household dogs were trained to detect both lung and breast cancer with 90-100% success rate when checked by biopsy-confirmation, only by smelling patients breath. This also after only a few weeks of training.
A dog can instinctively solve calculus problems when playing fetch.