Other Names: Yayu the Hyena; the fanged hyena Yayu
First Appearance: Jungle Action (vol. 1) #1 (Oct. 1954): "Survival of the Mighty"
NOTE: This is our current best assessment of the first appearance of this character, but this has been flagged in our database as uncertain.
Number of Appearances: 1
Enemy of: Man-Oo the Mighty
Suggested links for further research about this character and the character's religious affiliation: