Prologue - For Science!

Young (Y/N) is a son of a well known doctor, (F/N) (L/N). His father spent the entire time to check if there is possibilty for humans to evolve. One of the side effects of his research was possibility to get human into proper cryo-sleep without destroying the tissues. The final step in this was a race of humanized animals that dependably on the DNA could range from simple dogs and cats to even sharks or tigers...