Explorer (National Geographic Channel)

Documentary series EXPLORER takes a scientific look at an assortment of historical, geographical, and ecological topics, everything from the dark world of methamphetamine use to the aftermath of Hurricane Katrina and the secret lives of Jesus. Using thorough research and stunning complementary video and photos, experts piece together answers to questions surrounding the spotlighted subject matter. For example, in one episode focusing on the deadly impact of the world's largest snakes, scientists used monitors attached to live prey to measure the power with which an anaconda constricts and kills its victims, and viewers watched as snakes swallowed animals like deer, ducks, and alligators whole. Researchers also performed experiments on lab snakes to test their ability to consume animals nearly as large as themselves. Three-dimensional graphics helped illustrate the information the scientists provided on how and why the process works.

While a multitude of educational opportunities can be found in Explorer, parents might want to scan the listings for upcoming episode topics before deciding whether their kids are up for it. Sometimes-graphic images are the main concern here (the snake episode got a bit bloody, for example), but the show's ever-changing subject matter makes it difficult to predict when anything iffy will show up. Kids (and parents) who do tune in will find themselves amazed at what they learn.