Giant Hippo Getting Tooth Brushing Goes Viral - So Scary! (VIDEO)

Meet Tetsuo - the huge hippopotamus from the Tennoji Zoo in Osaka, Japan which gets his teeth cleaned by a fearless zookeeper with a giant toothbrush.

OMG, this job is so scary!

Hippos are one of the most dangerous land mammals on Earth.

Press play to watch the video below.