Demo Diagram Generator

Diagram size:  by 

Plants    Fish    Birds   
Mammals    Reptiles    Humans   

The following are optional items which are not part of 'core' set
Books    Cars   

How should the diagram handle ommited components ?
Render Blank Component Areas     Expand Adjacent Components when possible

Opera's font and line smoothing algorithms are better. Safari renders a cleaner popup. Chrome clips decending glyphs. YMMV.