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Was the Iceman a shepherd?

Related Article: Learn more about archaeology.

The artifacts found with the Iceman provide some clues as to his identity.
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Evolution: Genetics

Evolution: Genetics (2:29)

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

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.

Evolution Hits the Beach

Evolution Hits the Beach (1:05)

A lively, informal look at a fossil that may represent the first vertebrate to emerge from the ancient seas, discovered by scientists from the University of Chicago, Harvard University and the Academy of Natural Sciences in Philadelphia. Credit:... More »

Jane Goodall on Monkeys, Apes and Ecology

Jane Goodall on Monkeys, Apes and Ecology (29:20)

Watch this video about Jane Goodall and her talk about monkeys, apes and ecology at TED on HowStuffWorks. Jane Goodall, popularized in the movie "Gorillas in the Mist" starring Sigourney Weaver, discusses using advanced technology such as night... More »

The Origin of Life

The Origin of Life (4:11)

Watch this video about the origin of life on HowStuffWorks. Could there be life elsewhere in the universe? Learn about how researchers can speculate about other life based on their research of life on Earth in this research video from Georgia Tech.

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Adapting to the World: The Cradle of Life

Adapting to the World: The Cradle of Life (5:10)

Scientists believe that life may have originated in the Earth's oceans, evolving from unicellular organisms to the creatures we know today.

Molecules and Evolution: Video Quiz

Molecules and Evolution: Video Quiz (1:12)

Test your knowledge of molecules and evolution in this video quiz.

Molecules and Evolution: The Impact of Evolution

Molecules and Evolution: The Impact of Evolution (0:39)

All organisms undergo changes associated with evolution. In complex multi-cellular organisms, the process occurs at a slower pace.

Molecules and Evolution: Evolution in Action

Molecules and Evolution: Evolution in Action (2:33)

If we give a group of bacteria an antibiotic, one will likely have a mutation that makes it resistant to that antibiotic. This bacteria will reproduce and the others will die out.

Molecules and Evolution: Mutations and Enzyme Structure

Molecules and Evolution: Mutations and Enzyme Structure (0:58)

The active site can be changed by mutations.

Molecules and Evolution: Types of Genetic Mutations

Molecules and Evolution: Types of Genetic Mutations (1:47)

There are three basic types of mutations: substitution, insertion, and deletion.

Molecules and Evolution: Genes and the Genetic Code

Molecules and Evolution: Genes and the Genetic Code (1:31)

The order of codons controls the sequence of amino acids found in a protein.

Molecules and Evolution: DNA and Mutations

Molecules and Evolution: DNA and Mutations (2:38)

The DNA of a chromosome contains the genetic blueprint for the cell and is expressed through proteins. Genetic mutations can lead to evolution.

Molecules and Evolution: Life on Earth

Molecules and Evolution: Life on Earth (1:27)

The first life on Earth was single-celled bacteria that obtained food and energy from chemicals in the environment. The development of photosynthesis helped create an oxygen-rich atmosphere conducive to current life.

Molecules and Evolution: Introduction to Evolution

Molecules and Evolution: Introduction to Evolution (0:48)

Fossils show that life has existed on earth for 3.5 billion years, changing gradually through evolution.