I just signed up. It should be interesting because I'm just about to finish up with a semester long repro course.
I'm just shocked that there needs to be a course to explain how canines reproduce.
I think you'd be very very surprised. My reproduction course this semester has been one of my hardest undergraduate courses thus far (and we're talking about a schedule filled with chem, bio, physics, organic chem, microbio, anatomy, and other heavy science courses).
How do you think that all those processes happen? Why do you think some species differ (e.g humans can get pregnant year round, but not dogs)? What about those production industries that wish to maximize reproductive efficiency and synchronize timing of estrus and parturition? What about the HUGE current debate on human contraceptives versus interceptives vs. abortifacient birth control methods?
There's much more to it than putting male + female together and waiting 63 days. So so many internal processes that happen in (and before) that span.