Nature Wildlife
     * Wildlife
     * Prehistoric life
     * Life
Life
   Life on Earth started around 3.8 billion years ago and has since
   estimated 1.9 million animals, plants, and other forms of life on
   Life can be found in every nook and cranny/niche of the globe, from the
   than are alive today. Taking a historical perspective shows that life
   Clip taken from: Charles Darwin and the Tree of Life
Tree of life
   how and why we have the diversity of life we see all around us, but
   also showed how all life is connected.
   represented as an evolutionary tree known as the Tree of Life.
    1. Life
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   Tree of Life
   A phylogenetic tree of life, showing the relationship between the major
   Download a Tree of Life poster in .pdf format to print out and keep.
   The Tree of Life illustrates how different species arise from previous
   species via descent with modification, and that all of life is
   all life on earth, the outer branches the major biological groups.
   species from throughout the Tree of Life.
The major kingdoms of life
   Biologists classify life into a hierarchical family tree at the top of
   evolutionary history of life.
     * A tree canopy viewed from beneath Plants
     * Low angle view of mushrooms Fungi
     * Giant kelp viewed from underwater Chromista
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History of life on Earth
   The history of life on Earth began about 3.8 billion years ago, during
   as bacteria. Multicellular life evolved over a billion years later and
   it's only in the last 570 million years that the kind of life forms we
     * Tree of life web project (tolweb.org)
     * The Encyclopaedia of Life (eol.org)