Krypto’s Original DC Origin StoryKrypto the Superdog’s comics origin story is a little different. It isn’t until after he dubs him “Superdog” that he discovers the pup’s true origin: back on Krypton, much like on Earth, early versions of rockets were tested with animals. Superboy learns about Krypto’s true origin in Adventure Comics #210, published in 1955. DC ComicsThe rocket was hit by a meteor and landed not only on Earth but also in Smallville. (In an ingenious moment of brand synergy, Krypto was also the namesake of the “Krypto Superhero Play” during the Puppy Bowl.)