6.6. & 11.4 Reproduction from Bob Smullen
A Biologist’s Mother’s Day Song (3m 50s):
Paul Andersen describes The Reproductive System in 9m.
Fantastic animated tutorials from McGraw Hill Education – spermatogenesis & the maturation of the oocyte & follicle.
In Crash Course Biology #34 – The Reproductive System: How Gonads Go, Hank lets us in on the meaning of life, at least from a biological perspective – it’s reproduction.