“How DO you make your bottom glow?

How DO you make your sitter light?”

The firefly cleared his throat and said,

“Bioluminescence is the oxidation of an enzyme

or protoplast called lucifern or luciferase.”

I thanked him and went home to bed.

— Jack Kent

From the opening of Chapter 3 in one of my textbooks.

Cassell, K.A. & Hiremath, U. (2011). Reference and information serices in the 21st century: An introduction, second edition revised. New York, NY: Neal-Schuman Publishers inc.