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mobrocket t1_iy5lxdt wrote

What... No...

Human tribes would kill each other long before the first city... Where are you getting your information???

And humans have been spreading diseases to each other since humans existed. The fucking common cold doesn't need a insect vector to spread... not to mention diseases spread genetically.

And an overwhelming number of spider bites need zero medical treatment. There are 45000 species of spiders and only about 30.or so are harmful to people...

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drsillyus t1_iy5mj0i wrote

You forget about medicine. Before sanitation, a splinter was death. Any open wound would basically kill you. That includes spider bites.

You seem to not really understand how evolution works.

Sure humans killed each other, but they also helped and bred with them, furthering the species and reenforcing that, those who don't run from the cave men, have children.

However, those who did not avoid biting insects, would simply die and not breed.

Over millions of years this creates an effect.

Learn more about evolution. It doesn't do what you think it does.

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mobrocket t1_iy5n2b3 wrote

I give up... If you think a splinter means death... That's such a rare case even without medicine it's ridiculous to even pose that. Because by your logic every human would have died.

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drsillyus t1_iy5nn5g wrote

You may want to look into that. There have been many deaths by splinters, even in modern times.

You forget that humans used to have 15 kids and only 1-2 would make it to adulthood. Oh so many died

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