Also, many flora and fauna prints address specific aspects of wild animal and plant life. An example of this treatment is seen in the print 'Photosynthesis' where plant nourishment is examined and illustrated.
Scientific visual aids are useful for demonstrating things that can't be seen by the naked eye. Each aspect of the natural world is built up of a million tiny fragments. Understanding how these fragments work is often impossible for students without the assistance of biology posters to illustrate things that are too small to see with their own eyes.