Usually depicted as pure white, Pegasus is the offspring of the Olympian god Poseidon. He was foaled by the Gorgon Medusa upon her death, when the hero Perseus decapitated her. Pegasus is the brother of Chrysaor and the uncle of Geryon.
Pegasus was caught by the Greek hero Bellerophon, near the fountain Peirene, with the help of Athena and Poseidon. Pegasus allowed Bellerophon to ride him in order to defeat the monstrous Chimera, which led to many other exploits. Bellerophon later fell from the winged horse's back while trying to reach Mount Olympus. Afterwards, Zeus transformed Pegasus into the eponymous constellation.
When Perseus slew the gorgon Medusa, her blood hit the ground and a winged horse sprung forth from the puddle of blood. Named Pegasus, the flying steed aided Bellephron in the slaying of the Chimera, before becoming the carrier of Zeus's thunderbolts. Later the steed would reappear on Paradise Island along with the Greek Sphinx and Chiron, as part of Wonder Woman's menagerie. His offspring would become the mounts for the Amazons, which they would use to bring down aircraft during the Amazonian war on America.
Pegasus is virtually immortal, incredible strong and fast, and can fly via his enormous wings.