Huge - Huge, Heavy - Heavy, Noisy - Noisy, Fierce - Fierce, Keep cool - Keep cool, Stay in water - Stay in water, Run fast - Run fast, Live in groups - Hippo Live in groups, Stay safe - Stay safe, Eat plants - Eat plants, Roar - Roar, Look for foods - Look for foods, Dive - Dive, Sleep underwater - Sleep underwater, Short tail - Short tail, Thick gray skin  - Thick gray skin , Features - Features, Hold breath - Hold breath,

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