What is life? Does this sound like a strange question to you? Of course we all know what is meant by the word "life", but how would you define it? Explore the links at the right to learn more about the stuff life is made of, genetics, the diversity of living things, how they coexist in ecosystems and evolve over time.
Earth's Biosphere
Cells: What Life Is Made Of
Genetics Makes Us Who We Are
Diversity and Classification of Living Things
Ecology
Polar Life
Postcards from the Field: Antarctica
The Evidence of Evolution Exploratour 
Astrobiology
News About Life
Life Image Archive
Scientists Who Study Life