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.

Asexual Reproducers

This video segment explores the benefits and pitfalls of cloning as a means of reproduction. From Evolution: "Why Sex?"

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Dolphin Reproductive Behavior

This video segment from the Science and Technology Chat series focuses on dolphin pregnancy, birth, and care of the young, and features Atlantic bottlenose dolphins living in captivity at the Mirage Resort Dolphin Habitat.

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Endocrine Disruptor Hypothesis

Scientists discuss whether or not endocrine disrupting chemicals, which may cause birth defects and other health concerns, should be controlled in the absence of conclusive proof, in this video segment adapted from FRONTLINE: "Fooling with Nature."

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Floral Arrangements

Explore a few of the ways plants pollinate each other in this video segment from Sexual Encounters of a Floral Kind.

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From Seed to Fruit

Children get a glimpse of what happens underground in the life of a cherry tomato plant in this original animated video from KET.

From Seed to Fruit Interactive

Children get a glimpse of what happens underground in the life of a cherry tomato plant in this original animated video from KET.

Life Cycle of a Seed Plant

In this interactive activity adapted from the University of Alberta, learn about each step in the life cycle of a seed plant.

The Mating Game

This interactive feature from the Evolution Web site takes a lighthearted but informative look at some of the strategies various organisms use to reproduce.

Polar Bears and Climate Change

In this video from the World Wildlife Fund, learn how rising temperatures in the southern Arctic could lead to polar bear extinction.

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Primitive Insects of the Congaree Swamp

In this video segment from NatureScene, observe dragonflies and mayflies near Cedar Creek at Congaree Swamp National Park.

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The Red Queen

An example of the Red Queen hypothesis, the sexual population of Mexican Poeciliid fish are able to keep up with a changing environment, while the asexual populations are not as successful. From Evolution: "Why Sex?"

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Redwoods at Redwood National Park

This video segment from NatureScene describes the characteristics of redwood trees at Redwood National Park.

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Reproduction

Students explore the various ways in which organisms reproduce and the role reproduction plays in the cycle of life.

Reproduction: One Goal, Two Methods

In this lesson designed to enhance literacy skills, students learn about the advantages and disadvantages of the two basic forms of reproduction for the living things that practice them.

The Reproductive Role of Flowers

In this video segment adapted from NOVA, learn about the critical role of flowers in seed plant reproductive biology.

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Reptiles of the Congaree Swamp

In this video segment from NatureScene, discover some reptiles in the swamp forest ecosystem at Congaree Swamp National Park.

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Restoration of the American Chestnut

This KET video segment from Kentucky Life describes how scientists control pollination of one of the few remaining American chestnut trees to develop blight resistant trees.

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Single-Celled Organisms

This video segment explores the astounding diversity of the world's smallest life forms: single-celled organisms.

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Some Genes Are Dominant

This interactive activity, adapted from the Dolan DNA Learning Center, illustrates how Gregor Mendel used pure-bred yellow and green peas to show that some genes are dominant and others are recessive.