You searched for: “zoogeny
zoogeny (s) (noun) (no pl)
The development and evolution of animals: Zoogeny can be describe as being the principle or concept of the crystallization of life forms including their organs and parts.
zoogony, zoogeny (s) (noun), zoogonies (pl)
In zoology, the study of the creation of life forms: Thomas was so interested in how animals come into being that he wanted to take a course in zoogony and learn more about animal generation.