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Evolution: Genetics

Related Article: Learn more about evolution.

Genetic research explains how evolutionary changes actually occur. Biological evolution is the change in genetic composition of a species that happens over time.
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Introduction to DNA

Introduction to DNA (0:52)

This section discusses the discovery of DNA. DNA carries an organism's genetic material and may be passed on to its offspring.

100 Greatest Discoveries: Evolution

100 Greatest Discoveries: Evolution (2:08)

See how the fossil record changes our view of what it means to be "human." Learn more about evolution in this video from Discovery.

Humans and Ecology

Humans and Ecology (3:09)

Examine the human influence on Earth's ecology.

A New Look at Evolution

A New Look at Evolution (17:32)

Could corn be smarter than humans? It sounds absurd at first, but watch this video to see our world from a plants-eye view. What is and how does evolution really work? Video courtesy of TED.

The World of Living Things: Kingdom Protista

The World of Living Things: Kingdom Protista (0:34)

Protists are plant-like and animal-like unicellular organisms.

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100 Greatest Discoveries: Natural Selection

100 Greatest Discoveries: Natural Selection (2:34)

Charles Darwin's extensive studies in the Galapagos Islands led to his theory of natural selection, adaptation and extinction. Learn more on The Science Channel's "100 Greatest Discoveries."

100 Greatest Discoveries: Burgess Shale Preservation

100 Greatest Discoveries: Burgess Shale Preservation (1:23)

The Burgess Shale, located in the Canadian Rocky mountains, was created by an underwater mudflow. It has entombed organisms for hundreds of millions of years. Learn more in The Science Channel's series "100 Greatest Discoveries."

100 Greatest Discoveries: Tumai and Hominid Diversity

100 Greatest Discoveries: Tumai and Hominid Diversity (1:31)

The discovery of the Tumai, the oldest hominid fossil ever found, was discovered in Africa in 2002. Its presence raised questions about the diversity of life among ancient hominids. Learn more with The Science Channel's, "100 Greatest Discoveries."

100 Greatest Discoveries: Laetoli Footprints

100 Greatest Discoveries: Laetoli Footprints (2:03)

The Laetoli footprints are one of the greatest discoveries in the study of human origins. These perfectly preserved fossil footprints give us insight into hominid behavior. Learn more with The Science Channel's series, "100 Greatest Discoveries."

Kapow Superhero Science: Extended Longevity

Kapow Superhero Science: Extended Longevity (2:20)

What if you delay reproduction? Would natural selection keep you alive longer? Learn more about research involving longevity on The Science Channel's "Kapow! Superhero Science."

100 Greatest Discoveries: The Start of Darwin's Theory

100 Greatest Discoveries: The Start of Darwin's Theory (2:39)

While aboard the HMS Beagle ship, scientist Charles Darwin would begin to fully realize his theories that would later make him famous. Learn more about Darwin's voyage and the theories he made on the Science Channel's series, "100 Greatest... More »

Simply Science: Geranium Science

Simply Science: Geranium Science (3:41)

A question about photosynthesis in a geranium plant leads to a scientific experiment to answer the question.

Origin and Evolution of Life: Laetoli Footprints

Origin and Evolution of Life: Laetoli Footprints (2:13)

The Laetoli footprints are 3.5 million year old fossilized footprints of the Australopithecus Afarensis. They are from upright walking creatures and indicate a timeline for perhaps the most important evolutionary development in human history.

Origin and Evolution of Life: Pre-human

Origin and Evolution of Life: Pre-human (3:33)

Australopithecus Afarensis is a pre-human species that lived between three and four million years ago. Although it is not certain where this species fits into humans' evolutionary timeline (if at all), it does contain both human and ape-like... More »

Origin and Evolution of Life: Hydrothermal Vents

Origin and Evolution of Life: Hydrothermal Vents (5:18)

Hydrothermal vents are geysers on the ocean floor that continually spew hot, mineral-laden water. These vents greatly help diversify the sea life around them. Learn more about hydrothermal vents in this video.