Not all heroes are human. Sometimes heroes bark, meow, or even grunt. They may be covered with fur, have curly tails, or live in an alley. We’re about to meet some real-life animal heroes.. Each one of these heroes has performed an amazing rescue. Sometimes they even put themselves in danger to help others. We’ll meet a dog who rescues stray cats. A brave cat who saved her five kittens from a fire. A pig who got help for her owner who was having a heart attack. And a guide dog who led his owner down 71 flights of stairs when the World Trade Center was attacked.