1-3-1-1 Introduction

0 Contents 1 Background 1-3 Biological 1-3-1 Evolution

Processes 1-3-1-3

1-3-1-2 The history of life: looking at the patterns

Source http://evolution.berkeley.edu/evolibrary/article/0_0_0/evo_03 

             2.3.1.2.1 The family tree
             2.3.1.2.2a Understanding phylogenies
             2.3.1.2.2b Understanding phylogenies
             2.3.1.2.3 Building the tree
             2.3.1.2.4 Homologies and analogies
             2.3.1.2.5 Using the tree for classification
             2.3.1.2.6 Adding time to the tree
             2.3.1.2.7 How we know what happened when
             2.3.1.2.8 Important events in the history of life


How does evolution lead to the tree of life?

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 find a timeline of evolutionary history and information on some specific events in the history of life: human evolution and the origin of life.

Cladogram of select 
vertebrates showing where certain characters appear

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