This outline details the six steps necessary for completing a cladistic analysis. The final step is to build the cladogram, following the rules that: all taxa go on the endpoints of the cladogram (never at the nodes),...

This module provides a brief introduction to the philosophy, methodology, and implications of cladistic analysis. Cladistics is a particular method of hypothesizing relationships among organisms. Like other methods, it...

This Tree of Life web page features scientific information about Tardigrades, also known as water bears. The page includes the following Tardigrade resources: a diagram showing the external features of a Tardigrade,...