The history of life: looking at the patterns - Understanding Evolution
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The central ideas of evolution are that life has a history — it has changed over time — and that different species share common ancestors. Here, you can explore how evolutionary change and evolutionary relationships are represented in "family trees," how these trees are constructed, and how this knowledge affects biological classification. You will also
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Using the tree for classification - Understanding Evolution
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The origin of tetrapods - Understanding Evolution
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Trees of Life: A Visual History of Evolution
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The history of life: looking at the patterns - Understanding Evolution
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The history of life: looking at the patterns - Understanding Evolution
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History of Earth - Wikipedia
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Understanding evolutionary relationships - Understanding Evolution
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Reconstructing trees: Cladistics - Understanding Evolution
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How Scientists Discovered the Staggering Complexity of Human Evolution