Streaky the Supercat
Streaky the Supercat is a fictional character that appears in comic books published by DC Comics. Streaky first appeared in Action Comics #261 (February 1960) and was created by Jerry Siegel and Jim Mooney.
Fictional character biography
One of a series of super-powered animals including Krypto the Superdog, Comet the Superhorse, and Beppo the Supermonkey that was popular in DC's comics of the 1960s, Streaky was Supergirl's pet cat that was given super-powers by an unusual form of kryptonite.
In Action Comics #261 (February 1960), Supergirl was experimenting on a piece of green kryptonite in an attempt to find a way to neutralize its deadly effects. When her experiment failed, she tossed the kryptonite (or "X-Kryptonite", as it became known) out the window. Though her experiment failed, her pet Streaky came across the X-Kryptonite and was exposed to its radiation. As the comics described it, "Due to the unique combination of chemicals in X-Kryptonite, it has given Streaky superpowers!" Streaky's powers consisted of a smaller subset of those of Superman and Supergirl, including flight, super-strength, super-vision, super-speed, and human-level or better intelligence.