601. Biodiversity
In any given environment there are hundreds of varieties of plants and animals living together, creating ecosystems. 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.
602. Blood and Circulation
Bill becomes a real heartthrob when he talks about that not-so-wimpy organ, the heart. Valves, blood cells, and the circulatory system work together to pump it up...the heart, that is.
603. Brain
In this thought-provoking episode some very tricky optical illusions show that the brain doesn't always correctly interpret what it sees. Check out Bill Nye from a whole new angle when he gets an M.R.I. of his brain.
604. Dinosaurs
Robin Leach and John Ratzenberger drop by to help Bill take a closer look at dinosaurs and what has been discovered about the lifestyles of the big and extinct.
605. Fish
Take a dive underwater with the Science Guy when he studies fish. Explore the depths with these submerged creatures and discover how they breathe, grow, and survive in the wet.
606. Forests
Follow Bill out on a limb 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 what it does to help a forest's ecosystem. A forest ecologist climbs to the forest canopy to study what's going on up there.
607. Garbage
By digging up the dirt on garbage in ever-expanding landfills, Bill Nye exposes the vast amounts of nonbiodegradable waste humans create.
608. Heat
Way Cool Bill Nye really radiates in this sizzling episode. Learn what heat is and about its three forms: conduction, convection, and radiation.
609. Invertebrates
You may not believe it, but these "spineless wonders" far outnumber those of us animals with backbones. Bill shares invertebrates' unique characteristics and explains why we are dependent on them.
610. Marine Mammals
Marine mammals may look like big fish, but the Science Guy explains how they're more like humans. Listen closely to hear mammals communicate underwater and find out how our "relatives at sea" have found ways to live in oceans all around the world.
611. Patterns
Every time you look at, hear, touch, smell, or taste something, your brain collects information about the world around you. People deal with that information by finding patterns. To define and describe the patterns we see in nature, humans invented a special language -- math -- the language of patterns. With computers, finding, creating and studying patterns with math has become faster and easier than ever!
612. Smell
The sense of smell helps us interpret our environment and react to the things around us by letting us know when new smells are close-by. Other animals, like dogs, use their sense of smell even more than we do. Noses receive a smell, then the olfactory part of the brain decodes the many messages it gets, and lets you know that, yes, your feet are truly smelly.
613. Wetlands
Bill Nye sloshes across American wetlands and gets a little muddy as he shows us how swamps, bogs, and marshes help control floods, naturally filter water, and provide a good home to lots of living things, especially wildlife.
614. Amphibians
Being called "cold-blooded" is no insult to these creatures! The Science Guy explains how amphibians can live both on land and in water, and the mysterious process of metamorphosis.
615. Animal Locomotion
Bill checks out a millipede who walks by coordinating the movement of its 200 feet, and other creatures who move around without a leg to stand on!
616. Birds
Fly the coop with the Science Guy as he explores his fascination with birds. Bill shows us how these feathery friends stay airborne, where they live, and what they eat.
617. Bones and Muscles
Bill bones up on the things that give the body its shape and movement. He muscles in to give more than just the bare bones about X-rays, the healing of broken bones, bone marrow, and the body's joints.
618. Cells
Mad scientist Bill Nye CELLebrates the basic unit that makes up all living organisms--the cell. This exCELLent program zooms in on DNA and creatures like amoebas and paramecia.
619. Eyeball
Bill Nye focuses his attention on the body's window to the world--the eyeball. Bill also interviews a Seeing Eye dog trainer and a virtual reality designer, and demonstrates how a 3-D movie works.
620. Germs
Bill's knowledge on the subject of germs is positively contagious! The Science Guy illustrates the various types of germs and how they function. The recurring character "Mama Crust" motivates kids to brush their teeth, wash their hands, and cut way back on picking their noses.
621. Human Transportation
Transportation is on the move, whether it floats, rolls, or flies! Find out how humans move around for food, shelter, and to meet other humans.
622. Insects
Bill Nye explores the mysterious world of insects and 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.
623. Nutrition
You are what you eat! That's right...everything from your eyeballs to your elbows is made of food! Bill tells us what kinds of nutrients are in each bite and what foods are best for healthy bodies.
624. Reptiles
Join Bill Nye for adventure, thrills, and scaly encounters that would make Indiana Jones squeamish when he explores reptiles. Witness reptilian epicurean delights when a snake eats a mouse, and ponder the possible link between dinosaurs, reptiles, and birds.
625. Skin
What's the largest living organ on the human body? Answer: Skin. Bill Nye explains the naked truth about the organ that regulates our body temperature, protects our inner parts, and provides us with the sense of touch.
626. Spiders
The Science Guy demystifies this most misunderstood creature. He'll cure the most intense case of arachnophobia by showing how cool spiders really are, and how these eight-legged predators spin their webs and balance our ecosystem by preying on pesky insects.
