The Silver Age of comic books was a strange, strange time. It saw Batman in outer space encountering aliens, the introduction of crazy concepts like the Legion of Super-heroes, but more importantly, it saw the ushering of the superhero pet. Now, while not every entry on this list is a product of the Silver Age, many of the more outlandish concepts were birthed during this era. Many of them have not continued into the present, but here's hoping comic fans will forever have a soft spot in their hearts for adorable creatures with superpowers. If you are an animal lover and comic book nerd, there is no reason at all that you shouldn't being cooing your hearts out over the characters on this list. 


10. Beppo the Supermonkey

Perhaps a reflection of the space race, Beppo the Supermonkey was introduced in 1959 as a Kryptonian chimp that Superman's biological father, Jor-El, experimented on to ensure his son's safety in his trip to Earth. Well, as monkeys are prone to do (yes, I realize chimps are not monkeys), Beppo found himself into some mischeif and stowed away aboard baby Kal-El's rocket when it blasted off from Krypton. 

In perhaps one of the saddest turn of events for a superhero's pet, Beppo is seperated from Kal-El upon landing, only to come back into his life later on when teenaged Clark Kent has become Superboy. When Beppo gets into trouble in Smallville, Superboy does the obvious: he takes him into space and abandons him. Alone. What a martyr.

In the end though, Beppo meets up with Supergirl and is introduced to the other members of the Superpet family, with whom he eventually forms the Legion of Super-Pets, until he is wiped from existence forever via the massive retconning of Crisis on Infinite Earths.