[cfcef]

The post reads like a (very poorly written) rehash and plagiarism of Diamond...

[notthemessiah]

Perhaps you missed the "Further Reading" section at the top, because it's right there.

[cfcef]

A 'further reading' is not a reference; 'further reading' means 'here are additional sources you might find relevant about material not covered here'. Which of 'Triumph of the City', 'The Ghost Map', and 'Guns, Germs, and Steel' did the stuff about animals come from, if you hadn't already read them? That's right - you don't know! Because he's not giving a reference.

[BookmarkSaver]

Maybe you should pay more attention to his sources and descriptions.