This sound effect can be found on the Monsters and Creatures Sound Effects Library, which was made by Sound Ideas. It includes shortened edits of Hollywoodedge, Bear Polar Growl Inha AT032201 and Hollywoodedge, Elephant Trumpet Gro AT044201. Links: https://soundideas.sourceaudio.com/track/7552290 https://soundeffects.fandom.com/wiki/Sound_Ideas,_APE,_GIANT_-_LARGE_GROWL_01#Audio_Samples