Hippopotamus ATC's

This is for all you hippo lovers out there! This is an international swap. 2 partners, 2 atcs each. 4 atcs total to be made. Something to do with hipps on each. Either a pic, or a fact, or whatever you like really to do with hippos. I will be checking profiles before assigning partners, but no-one with a rating less than 4.7 need sign up. Newbies are more than welcome. Happy swapping. (and one day I will actually work out this markdown syntax thing and have these set out neater.)