Three lions saved an abducted Ethiopian girl.
Moko the dolphin rescued two whales from beaching themselves.
Therapy dogs that have come to comfort those affected by Newtown.
Scarlet the cat, who risked everything to save her kittens.
Lily the Joplin tornado rescue dog.
The rescue dogs that helped with the aftermath of the 9/11 attacks.
Really, all rescue dogs.
The cat who detected a human's breast cancer.
LuLu, the potbellied pig who saved her human's life.
Sergeant Stubby, the only dog promoted to sergeant through combat.
This beluga who saved a diver in a competition gone wrong.
Killian, the dog who saved his 7-month-old human from an abuser.
Cher Ami, a carrier pigeon during World War I.
Otters might be saving the the world from environmental collapse.
The bear who saved an elderly hiker's life.
Lefty, the pit bull who took a bullet for his owners during a home invasion.
Therapy llamas comfort hospice patients.
Toby, the golden retriever who saved his owner using the Heimlich maneuver.
A pod of dolphins saved a surfer from a great white shark.
Babu the Shih Tzu saved his owner from the 2011 tsunami in Japan.
Sergeant Reckless, the war horse of the Korean War.
A parrot saved a child from choking.
Kabang saved two girls from being hit by a motorcycle.