This sound effect can be found on the Monsters and Creatures Sound Effects Library, which was made by Sound Ideas. It includes Hollywoodedge, Bear Polar Growl Inha AT032201. Links: https://soundideas.sourceaudio.com/track/7552282 https://soundeffects.fandom.com/wiki/Sound_Ideas,_APE,_GIANT_-_LARGE_GROWL_09#Audio_Samples