Learn, understand, then decide whether you accept or reject.
If you're germophobic, this is a book you might want to skip. It explains the origins of microbes and how they spread, along with their evolutionary threats and potential epidemics. Terrifying, but I couldn't put it down.
The course explores the theory of evolution from the "primordial soup" to the modern era, followed by more relevant exploration of key biological systems and the idea of biodiversity and communities. There's some imbalances in the attention given between one topic and another, and it focuses a lot of some extremely specific processes and skims through others.
I recommend you listen to Tom Standage's books if you're into the history of food and drink. This helps paint a better picture by explaining the relation between humans and the aquatic world.