It's #NationalHippoDay and we know there's a TON to appreciate about this large-and-in-charge species, but we want to focus on one important thing: hippo ear wiggles. Did you know that hippo ears have a valve that closes when they go under water to prevent water from getting in? When they pop back up above water, they wiggle their ears to help open that valve which allows them to hear better. Ear wiggles are more than adorable. Some might say they're functional fashion. Enjoy this compilation of

Hippo Vs Crocodile Real Fight! #animalattack | Animals Attack