Here’s a delightful blog post about a woman who dreams in hippos: http://birthsong.wordpress.com/2008/12/05/the-birth-hippo/. She also has some interesting information on an Egyptian hippo goddess named Taweret, protector of woman and children.

Taweret

And here’s more about Taweret from Wikipedia: http://en.wikipedia.org/wiki/Taweret.