Anyamal Tantei Kiruminzoo

Animal Detective Kiruminzoo (あにゃまる探偵 キルミンずぅ, Anyamaru Tantei Kiruminzū) is a Japanese magical comedy anime series created by Shōji Kawamori in collaboration with Hal Film Maker and JM Animation; it is Kawamori's first shōjo title. Animated by Satelight, the series premiered in Japan on TV Tokyo on October 5, 2009. A manga spinoff is serialized in Shueisha's shōjo magazine Ribon.

Plot
While searching for a run-away cat the twins Riko and Rimu Mikogami find a strange device that transforms them into "Kirumin". It also enables them to turn into real animals. Their older sister Nagisa soon joins them. Now the three have cute, funny and sometimes dangerous adventures.

Official

 * Kirumin's Official Website

Other Sources

 * Wikipedia
 * Anime News Network (Anime)