[Picture] Which "animal" does Nichkhun transform to this time?

We have seen Khunfu Panda and Khun Duck last week but do you have any idea which animal Nichkhun transforms to this time?
Well,it is pretty obvious right?He imitates Hippo in the photo above,but i am sure he is the most handsome hippo in the world,am i right?
Credits to 2PMAlways and Khun's Me2day for the photo