Point Defiance Zoo & Aquarium on Instagram: "Amazing walrus vocalizations! 🎵 Walruses are social animals and are known for their unique and loud vocalizations. A male walrus roar can reach levels of up to 120 decibels, making them one of the loudest sounds produced by marine mammals. The caps on the walrus tusks are to help protect them as they grow - similar to a night guard for human teeth! 📹: Keeper Kristyn #walrus #walruses #animalcare #pointdefiancezoo #aquarium"