Pegasos

Those who went alone fueled only by ambition and a sense of competence, like Bellerophon, were shunted back to earth; as Pegasos, with that famous moral wriggle, threw his human master in exchange for a divine one in the stalls of Zeus. Monsters or sports like Pegasos were sensitive indicators in Greek myth of the status of ambitious man; when monsters stand for death, man may kill them.

1979, Emily Vermeule, “Immortals Are Mortal, Mortals Immortal”, in Aspects of Death in Early Greek Art and Poetry (Sather Classical Lectures; 46), Berkeley, Calif.; Los Angeles, Calif.; London: University of California Press, →ISBN, page 128

The same time period also offers our first look at Medousa and her family, that is, Medousa shown intact and, at her side, her children, Pegasos and Chrysaor, who will in fact emerge from her neck only after her head has been cut off.

1993, Timothy Gantz, “Gaia and Pontos”, in Early Greek Myth: A Guide to Literary and Artistic Sources, volume 1, Baltimore, Md.; London: The Johns Hopkins University Press, →ISBN, page 21