tsecher

The ts-tree plugin allows you to organise your posts and categories in a graphic way. You can manage all your entities (categories and posts) in a unique screen. 
That’s the end of the infinite clicks…

ts-tree

Organize your posts and categories in a simple beautiful tree, easily and quickly ;)

burria

Creates a custom content type to upload pets, displays from 1 to 4 generations (parents are counted as first generation).
When you create a new pet it lets you select the mother and father and then draws a pedigree 
tree when the user is viewing the post.

Laika Pedigree Tree

This plugin creates a custom post type for pets, connected to his parents and then automaticaly draws a pedigree tree.

ts-tree vs Laika Pedigree Tree