As with every great thing, I slowly petered off towards the end since I didn't want it to be over, but I've finished it now. >>3245 was right in describing it as one of the comfiest shows ever. From start to finish, it kept its simple charm of silly animal antics and I wouldn't have it any other way.
Animal Tantei Kiruminzu was an incredibly solid show with great production. Animation was fluid and crisp with near zero QUALITY, especially in the movement and motion of the many animals. The OP/EDs were cute and catchy. The slice of life animal-sleuthing episodes were comfy as HELL. All of the major players were fleshed out suitably over the course of the show, developing naturally and dynamically in age-appropriate ways. The plot was properly paced, ramping up the "seriousness" precisely when it needed to, but not being bogged down by it. And the theme (coexistence with animals, preserving natural habitats) was simple and suitable for the audience, but treated with the gravitas it deserves while not beating you over the head about it. In particular, I loved that no matter what happened to our detectives, or what plans they would inadvertently foil, they would never connect the dots about the heinous plots going on and keep believing everything was simple matters of lost and/or abducted pets. Or aliens and youkai. Meanwhile, their parents, the police detectives, and other related adults would deal with the serious matters and move things along by fleshing out the setting. That disconnect between the main attraction of childish antics and "serious" background plot is exactly what makes a great kids show.
Near the beginning of the show, they even had live-action zoo segments with comedic voice-overs at the end, introducing you to both common and uncommon animals alike. I really liked those bits and wish they had kept on with them, but they only lasted for the first 7 episodes or so. Then they replaced it with some godawful skit of an ugly dude dressed in some awful cat costume wandering around town and doing random shit, only to stop that one as well somewhere around the second cour. It's a shame that shitty cat thing killed the 3D segment since the zoo corner was great.
Overall, I absolutely love this show and would have kept watching it no matter how long it kept on. That it doesn't have a second season, a revamp/reboot, or really anything at all kills me inside. It seems to have simply come out, done its thing, gotten 15 minutes of otaku fame, then disappeared quietly when out of the limelight.
10/10 KIDS KINO
Literally only a single translated doujin of Pochi-nee ;_;