Why did animals go savage in movie zootopia?

In the movie "Zootopia," animals went savage due to a mysterious serum that was causing certain predators to revert to their primal instincts and exhibit violent behavior. This serum was discovered to be linked to a conspiracy by the character Bellwether, who aimed to create fear and division between predator and prey species to gain power. The situation highlighted themes of prejudice and the importance of understanding and cooperation among different groups. Ultimately, the protagonists, Judy Hopps and Nick Wilde, worked to uncover the truth and restore harmony in Zootopia.