MadSci Network: Evolution

Subject: Hygiene and the evolution of human beings

Date: Tue Sep 27 06:17:30 2005
Posted by Franco
Grade level: nonaligned School: No school entered.
City: No city entered. State/Province: No state entered. Country: Belgium
Area of science: Evolution
ID: 1127827050.Ev

Hello, here my question.
How the first human beings knew to survive until evolving/moving and becoming
what we are knowing that hygiene, the vaccines, etc did not exist?

Re: Hygiene and the evolution of human beings

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