This sound effect can be found on The Odyssey Collection: Creatures Sound Effects Library, which was made by Pro Sound Effects. They are edited versions of Hollywoodedge, Lion Roar Snarl Growl AT013601. Links: https://download.prosoundeffects.com/track/25405246 https://soundeffects.fandom.com/wiki/Pro_Sound_Effects,_Lion_Roar,_Two_Extended_Growls_01#Audio_Samples