Life Tree
=========

+-- Level +2 ---------------------------------------------------+
|                                                               |
|               %                                               |
|               v                                               |
|                                                               |
+---------------------------------------------------------------+

+-- Level +1 ---------------------------------------------------+
|                                                               |
|                     *                                         |
|                    / \                                        |
|                   /   \                                       |
|                  *     *>                                     |
|                   >                                           |
|                                                               |
|                                                               |
|                                                               |
|                                                               |
|                     *                                         |
|                    / \                                        |
|                   /   \                                       |
|                  *     *                                      |
|                   >   /                                       |
|                    < /                                        |
|                     *        *                                |
|                             / \                               |
|                            /   \                              |
|                           *     *                             |
|                            >   /                              |
|                             < /                               |
|                              *        *                       |
|                                      / \                      |
|                                     /   \                     |
|                                    *     *                    |
|                                     >   /                     |
|                                      < /                      |
|                                       *        *              |
|                                               / \             |
|                                              /   \            |
|                                             *     *           |
|                                              >   /            |
|                                               < /             |
|                                                *        *     |
|                                                        / \    |
|                                                       /   \   |
|                                                      *     *  |
|                                                       >   /   |
|               ^                                        < /    |
|         *--*--%                                *        *     |
|         |\    |                               / \             |
|         | \   |                              /   \            |
|      *--%  *--%--*--*--*--*--*--*--*!-*--*--*     *           |
|         v     v                                  /            |
|                                               < /             |
|                                                *              |
|                                                               |
+---------------------------------------------------------------+

+-- Ground level -----------------------------------------------+
|         ^     ^                                               |
|         %     %                                               |
|        / \   /|                                               |
|       /   \ / |                                               |
|      %  *--%  *                                               |
|      v     v                                                  |
|                                                               |
+---------------------------------------------------------------+

+-- Level -1 ---------------------------------------------------+
|      ^     ^                                                  |
|   *--%     %--%                                               |
|               v                                               |
|                                                               |
+---------------------------------------------------------------+