Numerous flaws, if not outright lies in this book.
Examples:
Diamond: "Papua New Guineans had a pig on the Island, but this pig was not native to the island so this is why they did not tame it."
He fails to mention that not only was this pig a domesticated pig from China, that somehow found its way to the Island, but this pig has existed on the island for at least 6,000 years and maybe as long as 10,000 years.
So the Papua New Guineans were too stupid to domesticate a feral pig that had been on their island for over 6,000 years! Diamond fails to mentions that this pig, though not native to the island, has existed there for millenniums!
He also claims that Europeans had a more diverse animal and plant life than Papua New Guineans, so this is why they found more plants to farm and animals to domesticate.
True! But he is purposely comparing the diversity of an island with the diversity of a continent. Switch that to Africa and how does he explain that Africans with a much larger diversity of animal and plant life failed to have farming and production anywhere close to that of Europeans?
He states that almost all of the domestic animals came from Europe and stupidly assumes this is because that somehow these animals were more easy to tame than other animals from other places...this is idiotic.
The American Grey wolf and the European wolf are almost identical. Europeans took the wolf and created numerous dog breeds, the Amerindians did nothing with the wolf.
Europeans now raise buffalo and some people claim they are easier to raise than tame cattle because they eat almost anything that grows. So why didn't the Amerindians do this?
Diamond's whole book is riddled with ridiculous flaws and lies.
By the way, Diamond is a Jew, no surprise there.