Airing on PBS KIDS, Wild Kratts is an animated half-hour series for elementary-aged kids-particularly ones who love animals and nature. Each episode kicks off with a live-action sequence featuring the real Chris and Martin Kratts, who ponder a biology-inspired subject. With the magic question - "What if. . .?" - the program transitions to an animated adventure where the cartoon Chris and Martin team up with cool scientist Aviva Corcovado.

Chris, Martin, Aviva and friends study animals and the fascinating scientific concepts behind their behavior. One episode examines how caterpillars turn into butterflies. In it, the team also traces the migratory habits of the Monarch butterfly. Along the way, they have to evade a greedy gal who wants to steal the butterflies, spicing up the scientific storyline with a dash of zany adventure.

Wild Kratts doesn't stray from it science mission, which blends live action, vibrant animation and accessible biology facts. At the same time, it doesn't shortchange the entertainment factor, delivering well-developed storylines and bright humor.

Each episode ends with a review of the science concepts presented in the episode, accompanied by video and still photos. Aspiring biologists will appreciate the solid content in the Wild Kratts, and parents will applaud the blend of entertainment and education, which makes both elements equally enjoyable.