Brenda Owen was walking her labrador retriever Penny by the Elwy River in St. Asaph, Wales about a month ago when she spotted a wheelchair on the shore and a body in the water. She shouted, "Fetch!" and Penny did. She jumped into the water and dragged the woman back to the riverbank, where a man helped her. The victim was injured and unconscious, and was taken to a hospital. She had been reported missing from a nearby home.
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This is by no means an all-inclusive list, as dogs makes headlines for heroism at an astounding rate. I excluded the most famous dogs to bring you stories that aren't as well known.