This sound effect can be found on the Hanna-Barbera Sound Effects Library, which was made by Sound Ideas. Links: https://soundeffects.fandom.com/wiki/Sound_Ideas,_BEAR_-_LOUD_BELLOW,_ANIMAL#Audio_Samples
Sound Ideas, BEAR - LOUD BELLOW, ANIMAL
Grizzly Bear (Son of Godzilla)
for Grizzly Bear (Son of Godzilla) in Sound Ideas
Suggested by toonking1985
Vote for and/or add what you guys think would be the best sound effects' for certain creatures, objects, and characters?
