If you're looking for anime similar to Catman Specials, you might like these titles.
Mao Tian Mao Di is a school for cats. From students to teachers to janitors, all are cats with unique personalities and quirks. The four protagonists are form one of the classes and undergo a handful of interesting, funny experiences.
The autobiographical manga utilizes both drawings and photos of cats to chronicle the life of a woman who lives by herself in order to live with her cats. She is described as a "himono-onna," a Japanese slang word that means "a woman who is proper in public but lazy at home."
The new Nukko. anime is an adolescent school story revolving around Nukko and Nukko's slightly oddball friends.