PBS is getting a ton of mileage out of the Kratt brothers, the stars and producers of the live-action/animated weekday series, Wild Kratts.
The best way to describe the show, based on its themes, is that it's equal parts Captain Planet (for environmental reasons) and Wild Kingdom, since it focuses on animals. However, I don't think Marlin Perkins would've ever signed up to be turned into an insect or animal, as the Kratts and friends often do in the context of their adventures.
The style of animation resembles those Esurance commercials (And we'll get to those real soon) from a few years back. Probably the same animation house. Depending on where you live, Wild Kratts will air a minimum of twice a day on weekdays, and maybe weekends, too.
Right now, here's a recent episode, about the "Praying Mantis":