Catagenesis (biology)
Catagenesis refers to forms of evolution that are retrogressive. It is a term used in contrast to anagenesis, which is the evolution of a single population into a new form without branching lines of descent (cladogenesis).
| Basic topics in evolutionary biology |
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| Processes of evolution: macroevolution - microevolution - speciation |
| Mechanisms: selection - genetic drift - gene flow - mutation |
| Modes: anagenesis - catagenesis - cladogenesis |
| History: Charles Darwin - The Origin of Species - modern evolutionary synthesis |
| Subfields: population genetics - ecological genetics - human evolution - molecular evolution - phylogenetics - systematics - evo-devo |
| List of evolutionary biology topics | Timeline of evolution |