Life Begins With Terpenes
If we look more closely at the actual events leading up to the moment of conception, we realize that life begins with terpenes.
An egg, in vitro, produces specific odors called terpenes, one or more of which can attract or repel a sperm. Like a hummingbird following a fragrance to a flower, the male sperm follows terpenes to find the female egg. These chemical attractants are naturally occurring in the egg, yet they are closely aligned with citrus fruits. Conversely, a female egg can release a different citrus terpene called undecanal which repels the sperm from the egg. The process of the sperm being attracted via olfaction (scent) to the egg is a process called chemotaxis which is the beginning of life.