"....from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved...."

Parasitic fungus doses cicadas with psilocybin and makes their butts fall off.

Further Mexica content: Emily Short's review of MEXICA, procedurally generated stories around Aztec legends.

The creator, Rafael Pérez y Pérez, has articles here :

MEXICA: a computer model of a cognitive account of creative writing
The Three Layers Evaluation Method for Computer-Generated Plots

As what we watch and read becomes more closely monitored, proc gen art will become the new pulp. I'm laying down a marker, here.

Seedlings of the parasitic plant dodder can detect nearby plants (i.e. potential victims) and grow toward them.