In Forensics, join Bill as he explores the world of forensic science. Learn how detectives reconstruct events from the past using bloodhounds, fingerprints, and DNA. Did you know that scientists can identify a person using only a drop of blood or a flake of skin?

In INSECTS, Bill talks to special guest Queen Latifah, who's abuzz about her other favorite queens ... bees. The lab kids go exploring at an insectorium and go digging for insect fossils.

Bill Nye talks about reptiles, their nature, habitat, food, body temperature, and how they breed. Snakes and crocodiles are fascinating creatures and Nye gives us a close look.

Follow Bill Nye in Forests, when he goes swinging through the trees in Washington, Florida, Texas, and California, to bring viewers close to the tallest and possibly oldest living things in the world. Examine a real forest fire to see how it benefits a forest's ecosystem--Container.

Get amped when Bill Nye gets a charge explaining 'watts up' with electricity. Learn how electricity makes the world a brighter place.

Sheep decides to make a special valentine song for her pal Bear, but runs into trouble when she tries to find the right rhyme for her song. With Fly's help, she makes Bear a valentine song straight from her heart. Bug wants to sign a valentine for his favorite WordFriend, but he doesn't know how to write his name. With Frog's help, he learns that with a little practice he can write his name and give his valentine.

Bill Nye literally sets up office in an ocean, a forest, and a field to commune with nature and show what happens when one link falls out of nature's chain.

Reporting from the frontiers of science, follow researchers on the winding paths of uncertainty and the unknown. From the mysteries of astrophysics to the technologies that could rival or surpass the abilities of the human mind, the series reveals how far humans have come, how they've managed to get here, and the remarkable scientists who are transforming the world and the future.

Elmo learns all about music, school, animals, sports, and much more in seven smart stories!Abby and Elmo learn about music and compromise when they form The Best Friend Band. Then, while celebrating Be Kind to Your Worm Day, Oscar learns that making Slimey happy is worth going against his grouchy nature. Plus, the Kindness Kid comes to town and helps everyone learn that it's nice to be kind. And finally, who will triumph in the Cast Iron Cook competition?...

An extraordinary expedition through the animal kingdom that investigates the unique traits and characteristics of animals and how they thrive in diverse environments.