+transform into when their state changes from animate to inanimate.
+
+TT_PROLIFERATE [0-255]
+If non-zero, there is a chance of 1 divided by the given value each turn for any
+thing of the selected type to emit an offspring to a random neighbor cell if one
+is available that is passable and not inhabited by a thing of the same same type
+or, if the proliferating thing is animate, any other animate thing.
+
+TT_STOMACH [0-32767]
+Set degree to which things of the selected type suffer from hunger or
+over-satiation: If 0, not at all. Else, each turn a thing of the given type may
+suffer a lifepoint decrement to the chance of the rounded down quotient of the
+satiation score's absolute value by the given value, then again divided by the
+latter. This means that the chance is always zero when the absolute value of the
+satiation score is lower than the given value.