All in the Family

This video from the series Faces of America details the process of documenting family history and tracing lineage back through maternal and paternal lines.

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American Chestnut Tree

This annotated slideshow adapted from KET's Electronic Field Trip to the Forest illustrates how blight decimated the American chestnut tree and the methods scientists use to identify and pollinate the remaining trees to create blight-resistant trees.

Animal Babies

This interactive slide show illustrates the variety of animal babies that exist on earth -- some completely independent and others deeply reliant on parental care.

Animal Cloning 101

Learn about clones and explore the methods scientists use to create clones in the lab in this interactive activity from the Dolan DNA Learning Center.

Animal Coverings

It takes a thick skin to withstand the hardships that life has to offer. This collection of images shows a variety of animals, each with a slightly different type of protective covering.

Animal Families

How long does a baby elephant stay with her mother? What do you call a baby goat? Young children learn some interesting facts about the lives of baby animals in this original video from KET.

As the Crow Flies

In this video from Nature researchers from the University of Washington conduct a long-term experiment to see if crows can pass information down from one generation to the next.

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Bird Beak Gallery

This collection of images of 10 different birds illustrates the diversity of bird beaks.

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Blood Vessels Help Tumors Grow

In this video segment, adapted from NOVA, Dr. Judah Folkman uses the scientific method to discover how cancer cells induce the formation of new blood vessels, which in turn nourish those cancer cells.

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Can We Slow Aging?

In this video segment adapted from NOVA scienceNOW, scientists discuss a family of genes called FOXO that can significantly extend life span in worms—and in humans.

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Cell Membrane: Just Passing Through

This interactive feature describes some of the most important structures and functions of the cell membrane.

Cell Transcription and Translation

In this interactive activity adapted from the University of Nebraska, learn how and where transcription and translation occur within a cell and observe both processes in detail.

Challenges of Incubation

This video segment from Nature examines American Eagles along the Upper Mississippi River and their struggle to protect their eggs from predators as well as from the cold, extreme weather.

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The Common Genetic Code

Paul Nurse describes his research that showed that humans share some genes with organisms as different from us as simple brewer's yeast. Footage from Secret of Life: "Immortal Thread."

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The Costs and Benefits of Treating Gene Defects

In this video excerpt from NOVA, find out how whole genome sequencing saved the life of Alexis, a fraternal twin who was originally diagnosed with cerebral palsy but, in fact, had an even rarer genetic condition.

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Create a DNA Fingerprint

Learn DNA profiling, the technique police use to catch the guilty and free the innocent. From NOVA: "The Killer's Trail" Web site.

Crime Scene Investigation

This video segment from IdahoPTV's D4K explores the tools and forensic science that crime scene investigators use to collect evidence to help solve crimes, and study animals, archaeology and paleontology.

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Desirable Breeding Traits in Cattle

This video from Nature offers a description of desirable traits in beef and dairy cattle.

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Different Breeds of Cattle

In this video segment from Nature, learn about six different breeds of cattle.

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The Discovery of Penicillin

This video segment adapted from A Science Odyssey tells the story of researcher Sir Alexander Fleming, whose luck and scientific reasoning led to the groundbreaking discovery of penicillin.

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